This question tests the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - focusing on predicting opaque material effects. This investigation tests how different materials affect light. Books are made of paper and cardboard - opaque materials that don't let light pass through. When light hits an opaque object, it gets blocked and creates a shadow on the other side. This is different from transparent materials that let light through. Amir's plan tests a book by shining a lamp at a wall and holding the book in the beam. The procedure is: shine light at wall (creating bright spot), then hold book between lamp and wall. Amir should observe that the bright spot disappears and is replaced by a dark area - the book's shadow. The correct answer says "The book will block light and make a dark shadow" which correctly predicts that opaque materials like books prevent light from passing through, creating shadows. This shows understanding of how solid, opaque objects interact with light. Impossible predictions like "The book will let light pass through and look bright" are wrong because books are opaque - they're made of materials that don't allow light transmission. Students might choose this if they don't understand that different materials have different light-blocking properties. Before investigation, review: "Can you see through this book? No! That means it's opaque - it blocks light." Demonstrate with hand shadow: "When something blocks light, it makes a shadow." During investigation: "Look where the light was bright - now it's dark! That's the book's shadow." Use comparison: "Hold up clear plastic - light goes through. Hold up book - light is blocked!" Make shadow puppets to reinforce: "Opaque things like our hands and books make shadows because they block light." Watch for students who think all objects should let light through or who don't connect blocking light with shadow formation.

This question tests the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - focusing on observation procedures. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard). When light is blocked, we see a shadow. Jamal's plan tests 3 materials: clear plastic, wax paper, and cardboard. The procedure is: hold each material in a flashlight beam and observe what happens on the wall. Jamal should observe whether the light spot appears bright, dim, or dark (shadow). The correct answer says "Watch if the light spot is bright, dim, or dark" which correctly identifies what to observe - the brightness level of light on the wall after passing through different materials. This shows understanding that the key observation is how much light passes through. Irrelevant observations like "Watch if the flashlight feels warm in his hand" are wrong because temperature isn't related to how materials affect light transmission. Students might choose this if they don't understand the investigation's purpose or think all aspects of the flashlight are important to observe. Before investigation, practice vocabulary: "Bright means lots of light, dim means a little light, dark means no light." During investigation, guide observations: "Look at the wall - what do you see? Is it bright like when nothing blocks the light? Dimmer? Or dark like a shadow?" Use a simple recording sheet with pictures: bright sun symbol, cloudy symbol for dim, dark circle for shadow. Explain that we're testing a property of materials - whether they let light through. Connect to real life: "This is why curtains can be see-through or block light completely!" Watch for students who focus on unrelated observations like material color, size, or texture instead of light transmission.

This question assesses the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - planning investigation part. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Jamal's plan tests three materials: plastic wrap, paper, and a book. The procedure is: shine a lamp at a wall, then hold each material in the path of the light and observe what happens. Jamal should observe if the wall appears bright, dim, or dark behind each material. Different materials will show different results. The correct answer says "He should observe if the wall is bright, dim, or dark." which correctly identifies what to observe in the investigation, focusing on light transmission properties. A distractor like "He should observe which material feels the softest." is wrong because it focuses on an irrelevant material property like texture instead of light effects; students might choose this if they don't understand the investigation is about light and materials, confusing it with sensory properties. Before investigation, show examples: "Can you see through clear plastic? Can you see through cardboard?" to establish transparent vs. opaque. During investigation: "What do you see on the wall? Bright light, dim light, or dark/shadow?" Record results in simple chart: Material | Light passes? (yes/some/no). Explain: Transparent materials have properties that let light pass through. Opaque materials' properties block light. That's why we can see through windows (glass is transparent) but not walls (opaque). Connect to everyday: "Why can you see through your water bottle but not your lunchbox?" Watch for: students who focus on unrelated properties (color, weight, size) instead of light transmission, or who think all materials should affect light the same way.

This question assesses the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - planning investigation part. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Marcus's plan tests three materials: plastic wrap, white paper, and a thick book. The procedure is: shine a lamp at a wall, then hold each material in the path of the light and observe shadows. Marcus should observe if a dark shadow forms, with the book being opaque creating the darkest. Different materials will show different results. The correct answer says "Thick book will make a dark shadow on the wall." which correctly identifies that opaque materials block light to create dark shadows. A distractor like "All three will make the same dark shadow." is wrong because it claims all materials have the same effect, ignoring differences; students might choose this if they think all materials affect light the same way. Before investigation, show examples: "Can you see through clear plastic? Can you see through cardboard?" to establish transparent vs. opaque. During investigation: "What do you see on the wall? Bright light, dim light, or dark/shadow?" Record results in simple chart: Material | Light passes? (yes/some/no). Explain: Transparent materials have properties that let light pass through. Opaque materials' properties block light. That's why we can see through windows (glass is transparent) but not walls (opaque). Connect to everyday: "Why can you see through your water bottle but not your lunchbox?" Watch for: students who focus on unrelated properties (color, weight, size) instead of light transmission, or who think all materials should affect light the same way.

This question assesses the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - planning investigation part. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Yuki's plan tests one material: cardboard. The procedure is: shine a flashlight at a wall, then hold cardboard in front and observe what happens. Yuki should observe if the light is blocked, creating a dark area or shadow on the wall. Different materials will show different results, but cardboard is opaque. The correct answer says "She should see the light blocked and a dark area." which correctly identifies what to observe for an opaque material blocking light. A distractor like "She should see a bright spot through the cardboard." is wrong because it claims opaque materials let light through brightly; students might choose this if they confuse opaque with transparent properties. Before investigation, show examples: "Can you see through clear plastic? Can you see through cardboard?" to establish transparent vs. opaque. During investigation: "What do you see on the wall? Bright light, dim light, or dark/shadow?" Record results in simple chart: Material | Light passes? (yes/some/no). Explain: Transparent materials have properties that let light pass through. Opaque materials' properties block light. That's why we can see through windows (glass is transparent) but not walls (opaque). Connect to everyday: "Why can you see through your water bottle but not your lunchbox?" Watch for: students who focus on unrelated properties (color, weight, size) instead of light transmission, or who think all materials should affect light the same way.

This question assesses the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - planning investigation part. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Jamal's plan tests three materials: clear plastic, wax paper, and cardboard. The procedure is: shine a flashlight, then hold each material in the beam one at a time, and observe what happens to the light on the wall. Jamal should observe if the light passes through completely, partially, or not at all, noting if the spot is bright, dim, or dark. Different materials will show different results. The correct answer says 'If the light on the wall is bright, dim, or dark' which correctly identifies what to observe in the investigation. This shows understanding that materials have different properties related to light transmission. A distractor like 'How heavy each material feels in his hand' is wrong because it focuses on an irrelevant material property unrelated to light. Students might choose this if they confuse material properties like weight with light transmission. Before investigation, show examples: 'Can you see through clear plastic? Can you see through cardboard?' to establish transparent vs. opaque. During investigation: 'What do you see on the wall? Bright light, dim light, or dark/shadow?' Record results in simple chart: Material | Light passes? (yes/some/no). Explain: Transparent materials have properties that let light pass through. Opaque materials' properties block light. That's why we can see through windows (glass is transparent) but not walls (opaque). Connect to everyday: 'Why can you see through your water bottle but not your lunchbox?' Watch for: students who focus on unrelated properties (color, weight, size) instead of light transmission, or who think all materials should affect light the same way.

This question tests understanding of 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - specifically identifying the investigation's purpose. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Sofia's plan tests 3 materials: clear plastic, wax paper, and cardboard. The procedure is: shine flashlight at wall, then test each material in the light beam. Sofia should observe how each material affects the light - letting it through, partially blocking, or completely blocking. Different materials will show different results. The correct answer says "How materials change light by letting it through or blocking it" which correctly identifies the investigation purpose: testing how materials affect light transmission. This shows understanding that the investigation focuses on the relationship between materials and light. The distractor "Which material is the strongest when you bend it" is wrong because it identifies a completely unrelated material property (strength/flexibility) instead of light transmission. Students might choose this if they don't understand the specific purpose of the investigation or think any material property can be tested with this setup. Before investigation, clarify: "Today we're testing how materials affect light - not how strong they are or how they feel." During investigation: "We're watching what happens to the light, not testing if materials bend." Use guiding questions: "Does the light go through? Is it blocked?" Explain: This investigation specifically tests light transmission properties, not mechanical properties like strength. Connect to everyday: "We're learning why some things let us see through them and others don't." Watch for: students who think the investigation tests general material properties rather than specifically light-related properties.

This question assesses the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - planning investigation part. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Keisha's plan tests three materials: clear plastic, wax paper, and cardboard. The procedure is: shine light through each and observe effects. Keisha should observe if light passes completely, partially, or not at all, learning about material properties. Different materials will show different results. The correct answer says 'Some materials let light through, and some materials block light' which correctly identifies what the investigation will teach. This shows understanding that materials have different properties related to light transmission. A distractor like 'All materials let the same amount of light through' is wrong because it claims all materials have the same effect. Students might choose this if they don't understand materials have different properties. Before investigation, show examples: 'Can you see through clear plastic? Can you see through cardboard?' to establish transparent vs. opaque. During investigation: 'What do you see on the wall? Bright light, dim light, or dark/shadow?' Record results in simple chart: Material | Light passes? (yes/some/no). Explain: Transparent materials have properties that let light pass through. Opaque materials' properties block light. That's why we can see through windows (glass is transparent) but not walls (opaque). Connect to everyday: 'Why can you see through your water bottle but not your lunchbox?' Watch for: students who focus on unrelated properties (color, weight, size) instead of light transmission, or who think all materials should affect light the same way.

This question tests understanding of 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - specifically identifying the investigation's learning outcome. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Marcus's plan tests 3 materials: clear plastic, wax paper, and cardboard. The procedure is: shine flashlight at wall, test each material in the beam, observe the differences. Marcus should observe that each material affects light differently - proving materials have different light-related properties. The correct answer says "Some materials let light through, and some materials block light" which correctly identifies the key learning: materials have different properties regarding light transmission. This shows understanding of the investigation's main concept. The distractor "All materials let the same amount of light through" is wrong because it claims all materials have identical effects on light, contradicting what the investigation will show. Students might choose this if they haven't yet understood that materials have different properties or think all materials are the same. Before investigation, predict: "Do you think all materials will do the same thing to light?" During investigation: "Look - are all three materials having the same effect?" Record differences clearly: Clear plastic - bright, Wax paper - dim, Cardboard - dark. Explain: This proves materials are different - they have different properties for how they interact with light. Connect to everyday: "This is why windows are glass and walls are wood - different materials for different purposes!" Watch for: students who don't yet grasp that material differences lead to different effects on light.

This question assesses the skill 1-PS4-3: Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light - planning investigation part. This investigation tests how different materials affect light. Some materials let light pass through them - we call these transparent (like clear plastic or glass). Some materials let only some light through - translucent (like wax paper). Other materials block light completely - opaque (like cardboard or wood). When light is blocked, we see a shadow. Testing different materials helps us understand they have different properties. Keisha's plan tests two materials: clear plastic and cardboard. The procedure is: shine a flashlight at a wall, then hold each material in the path of the light and observe what happens. Keisha should observe differences in light passage, with plastic allowing it and cardboard blocking it. Different materials will show different results. The correct answer says "Some materials let light through, and some materials block light." which correctly identifies the key learning about varying material properties. A distractor like "All materials let light through the same way." is wrong because it claims all materials have the same effect, ignoring differences; students might choose this if they don't understand materials have different properties related to light. Before investigation, show examples: "Can you see through clear plastic? Can you see through cardboard?" to establish transparent vs. opaque. During investigation: "What do you see on the wall? Bright light, dim light, or dark/shadow?" Record results in simple chart: Material | Light passes? (yes/some/no). Explain: Transparent materials have properties that let light pass through. Opaque materials' properties block light. That's why we can see through windows (glass is transparent) but not walls (opaque). Connect to everyday: "Why can you see through your water bottle but not your lunchbox?" Watch for: students who focus on unrelated properties (color, weight, size) instead of light transmission, or who think all materials should affect light the same way.