What does the picture show?

Flashlight A will appear the smallest from Earth.

Why do scientists compare their results?

Scientists question and check each other's explnations.

Why is the Sun so important to Earth?

It lights up the sky during the day.

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3rd Grade Science - Earth and Space in Time

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Questions 15

Answers

1
Birds overcome gravity by using forces to fly.
True
False
2
The Sun is bigger than most stars.
True
False
3
Why does the Sun appear bigger than other stars from Earth?
It is the closest star.
It is the biggest star.
It is the hottest star.
It is the brightest star.
4
What does the picture show?
Flashlight A will appear the smallest from Earth.
Flashlight C will appear the biggesr from Earth.
Flashlight B will appear the smallest from Earth.
Flashlight D appears brigther from Earth because it is the hottest.
5
Which is an example of overcoming the force of gravity?
a tennis ball hitting the ground
spinning in a circle
a ball rolling on the ground
a paper airplane moving up
6
The more mass something has the more ______ is needed to overcome gravity.
weight
matter
force
mass
7
What two forms of energy does the Sun give off?
light and heat
light and sound
electrical and heat
light and electrical
8
Why do scientists compare their results?
Scientists will change their results to match their conclusion.
Scientists do not want to have the same results.
Scientists use other results are other trials.
Scientists question and check each other's explnations.
9
How does a telescope change what we see?
We can see less stars.
The stars are smaller.
The stars are dimmer.
We can see more stars.
10
What two forms of energy do the stars give off?
light and electrical
electrical and heat
light and sound
light and heat
11
Most stars are very far away from Earth.
True
False
12
The Sun is the closest star to Earth.
False
True
13
Gravity cannot be overcome.
False
True
14
How is the Sun different from other stars?
The Sun is hotter than other stars.
The Sun is closer to Earth.
The Sun is made up of gases and other stars are not.
The Sun is bigger than other stars.
15
Why is the Sun so important to Earth?
It causes objects to fall to Earth.
It only warms land.
It lights up the sky during the day.
It only warms the oceans.

3rd Grade Science - Earth and Space in Time Flashcards | StudBud