1st Grade Science : Physical Science
Study concepts, example questions & explanations for 1st Grade Science
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Example Questions
Example Question #7 : Construct An Evidence Based Account
I am only able to see in the dark when I have a light to help me. I can use a flashlight, candle, or turn on a lightbulb.
True
False
True
This is a true statement. Humans have limited vision in the darkness; we need a light to help us. All of the items listed would be helpful in the dark. This claim is based in fact.
Example Question #1 : Construct An Evidence Based Account
Natalie could not see into the dark closet because she wasn't trying hard enough. If she wanted to see in the dark, I think she just needs to practice.
Is this statement based on evidence, or is it an opinion? How do you know?
You cannot tell if this is an opinion or evidence-based.
Evidence; gives data to prove her point
Opinion; uses the phrase "I think"
Opinion; uses the phrase "I think"
This statement is based on an opinion. The phrasing "I think" is a big clue that this is not an evidence-based account. If it were, there would be facts, data, observations, and no personal thoughts.
Example Question #2 : Construct An Evidence Based Account
Illumination is necessary to see objects in the dark. I tested this by looking into a dark room with no lights and a dark room with different light sources (candles, flashlights, and lanterns). When I used a light source, I could see what was in the room. When I did not use a light source, I could not see.
Is this statement evidence-based, or is it an opinion? How do you know?
Evidence; no mention of personal thoughts, includes observations
Opinion; the author stated personal thoughts and did not include any evidence
You cannot tell from the statement if it is evidence-based or an opinion.
Evidence; no mention of personal thoughts, includes observations
This statement is evidence-based. The author includes information about testing their theory with different light sources and used a scientific process to do the tests. There is no mention of personal thoughts or opinions.
Example Question #3 : Construct An Evidence Based Account
To see objects in the dark, I must use a light source to illuminate it. I know this because I performed a set of investigations and collected data. The data showed that when I went into a dark room, and my brother held up a toy, I could not see what it was. When I used a flashlight, I could see the toy.
Is this statement evidence-based, or is it an opinion? How do you know?
Neither; there is no way to tell if this is evidence-based or an opinion
Opinion; the writer included personal opinions in the statement
Evidence-based; the writer used data to support his/her conclusion
Evidence-based; the writer used data to support his/her conclusion
This is an evidence-bassed statement because there is no personal opinion mentioned, and the writer collected data to conclude. Using data is a form of evidence that helps support a conclusion.
Example Question #1 : Observe Objects In Darkness When Illuminated
Objects can be seen if a light is available to illuminate them or if they give off their own light.
True
False
True
This statement is true. Objects cannot be seen if it is dark. There has to be light from an outside source, or the object has to produce its own light to be seen.
Example Question #2 : Observe Objects In Darkness When Illuminated
An object can be seen when light reflected from its surface enters the _________.
mouth
eye
nose
eye
The light must reflect off the surface and enter the eye to be seen. An object will not be seen in darkness because there is no light reflecting off of the object's surface.
Example Question #1 : Observe Objects In Darkness When Illuminated
Nancy cannot find her favorite shoes in the back of her dark closet. She grabs a flashlight and sees them! Why couldn't she find them before she turned on the flashlight?
The shoes were not there.
Nancy didn't look hard enough.
It was too light.
It was too dark.
It was too dark.
Nancy could not see her shoes in the dark closet because humans cannot see when there is no light. The light must shine on an object and reflect into our eyes for us to see the object clearly, or it must make its own light. Shoes cannot make their own light, and the back of the closet was too dark for her to see.
Example Question #2 : Observe Objects In Darkness When Illuminated
What does the word illuminate mean? Example: I had to illuminate the dark cave to see if there was danger up ahead.
To darken
To leave
To light up
To explore
To light up
The word illuminate means to light something up. Humans have good vision, but we do not see well at night because there is limited light. Our eyes rely on light to reflect off the surface of an object so that we can see.
Example Question #5 : Observe Objects In Darkness When Illuminated
Which choice would be the BEST to illuminate a dark room?
A radio
A lantern
A small candle
A lantern
The best choice to illuminate (or light up) a dark room would be a lantern. A radio would give off little to no light, and a small candle would only produce enough light to see a few inches ahead of you. A lantern would give off much more light and help you to see in the dark.
Example Question #6 : Observe Objects In Darkness When Illuminated
Which object makes its own light?
A glow stick
A soda can
A dog
A glow stick
A glow stick produces its own light. You can use a glow stick to illuminate a small dark area or to make yourself more easily seen at night time. Glow sticks make their own light when two chemicals are mixed after snapping or shaking the stick.
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