Compare Materials Using Multiple Properties - 5th Grade Science
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What does the observable property "density" describe when comparing materials?
What does the observable property "density" describe when comparing materials?
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Mass per unit volume of a material. Density equals mass divided by volume ($ rac{m}{V}$).
Mass per unit volume of a material. Density equals mass divided by volume ($ rac{m}{V}$).
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Which option is the best observable property to compare if you need a see-through material: transparency or hardness?
Which option is the best observable property to compare if you need a see-through material: transparency or hardness?
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Transparency. See-through materials must allow light to pass through.
Transparency. See-through materials must allow light to pass through.
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Which term describes a material that does not let light pass through?
Which term describes a material that does not let light pass through?
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Opaque. Light cannot pass through opaque materials at all.
Opaque. Light cannot pass through opaque materials at all.
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Which property describes how hard it is to scratch a material?
Which property describes how hard it is to scratch a material?
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Hardness. Hard materials resist scratching and maintain their surface.
Hardness. Hard materials resist scratching and maintain their surface.
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Which property describes whether light passes through a material clearly?
Which property describes whether light passes through a material clearly?
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Transparency. Transparent materials allow clear vision through them.
Transparency. Transparent materials allow clear vision through them.
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Which term describes a material that lets some light through but not clearly?
Which term describes a material that lets some light through but not clearly?
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Translucent. Light passes through but objects appear blurry or unclear.
Translucent. Light passes through but objects appear blurry or unclear.
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Which property describes how well a material lets heat move through it?
Which property describes how well a material lets heat move through it?
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Thermal conductivity. Good thermal conductors transfer heat quickly.
Thermal conductivity. Good thermal conductors transfer heat quickly.
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Which property describes how well a material lets electric current pass through it?
Which property describes how well a material lets electric current pass through it?
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Electrical conductivity. Conductors have free electrons that carry electric current.
Electrical conductivity. Conductors have free electrons that carry electric current.
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Which property best describes a material that does not absorb water easily?
Which property best describes a material that does not absorb water easily?
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Water-resistant (low absorbency). Water-resistant materials repel water rather than soaking it up.
Water-resistant (low absorbency). Water-resistant materials repel water rather than soaking it up.
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Which property describes how rough or smooth a material feels?
Which property describes how rough or smooth a material feels?
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Texture. Texture is felt by touch and varies from smooth to rough.
Texture. Texture is felt by touch and varies from smooth to rough.
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Which property describes whether a material floats or sinks in water?
Which property describes whether a material floats or sinks in water?
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Density compared to water. Objects denser than water sink; less dense objects float.
Density compared to water. Objects denser than water sink; less dense objects float.
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Which option best compares materials using multiple properties: color only, or color and hardness?
Which option best compares materials using multiple properties: color only, or color and hardness?
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Color and hardness. Using two properties gives more complete information.
Color and hardness. Using two properties gives more complete information.
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Identify the better match for a raincoat: absorbent cotton or water-resistant plastic.
Identify the better match for a raincoat: absorbent cotton or water-resistant plastic.
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Water-resistant plastic. Plastic repels water, keeping you dry in rain.
Water-resistant plastic. Plastic repels water, keeping you dry in rain.
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Which material is the best electrical conductor: rubber, plastic, or copper?
Which material is the best electrical conductor: rubber, plastic, or copper?
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Copper. Metals like copper have free electrons for current flow.
Copper. Metals like copper have free electrons for current flow.
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Which material is the best thermal insulator for a hot drink cup: foam or aluminum?
Which material is the best thermal insulator for a hot drink cup: foam or aluminum?
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Foam. Foam traps air, which is a poor heat conductor.
Foam. Foam traps air, which is a poor heat conductor.
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Choose the best material for a window: transparent glass or opaque wood.
Choose the best material for a window: transparent glass or opaque wood.
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Transparent glass. Windows need transparency to let light through.
Transparent glass. Windows need transparency to let light through.
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Identify the material most likely to be attracted to a magnet: iron, wood, or glass.
Identify the material most likely to be attracted to a magnet: iron, wood, or glass.
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Iron. Iron contains magnetic domains that align with magnets.
Iron. Iron contains magnetic domains that align with magnets.
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Which conclusion is best if two samples look identical but one conducts electricity and one does not?
Which conclusion is best if two samples look identical but one conducts electricity and one does not?
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They are different materials with different properties. Appearance alone doesn't reveal all material properties.
They are different materials with different properties. Appearance alone doesn't reveal all material properties.
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What is an observable property of a material?
What is an observable property of a material?
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A characteristic you can detect with senses or simple tests. Observable means you can see, feel, or test it without special equipment.
A characteristic you can detect with senses or simple tests. Observable means you can see, feel, or test it without special equipment.
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Which property describes how easily a material bends without breaking?
Which property describes how easily a material bends without breaking?
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Flexibility. Flexible materials can bend and return to their original shape.
Flexibility. Flexible materials can bend and return to their original shape.
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