The Sun
Why do some stars appear much bigger than other stars
A. The brightness makes it larger in size.
B. There are different types of stars, and some are larger than others.
C. Stars are all the same size, and some are closer to Earth than others.
D. Dust and gas between the stars and Earth make some stars look smaller
B. There are different types of stars, and some are larger than others.
Students go outside to read on a sunny day. Some students sit under a shady tree and some sit in the Sun. After a little while, the students in the Sun moved to sit under the tree. What could explain why the students moved?
A. The Sun set behind the horizon.
B. The Sun’s light was only shining under the tree.
C. The Sun’s light was not bright enough for reading.
D. The Sun’s heat energy was heating up the students.
D. The Sun’s heat energy was heating up the students.
Which of the following is an example of overcoming gravity?
A. A leaf falling off of a branch
B. A skier going down the mountain
C. A rocket taking off into space
D. A ball falling down to the ground.
C. A rocket taking off into space
Jackie wanted to know how often she should water bean plants. Which experiment would best answer Jackie's question?
A. Give one plant warm water and one plant cold water. Measure their growth.
B. Plant two different kinds of bean plants in the same soil. Measure their growth.
C. Put one bean plant in the Sun. Put a second bean plant in the shade. Measure their growth.
D. Water one bean plant every day. Water a second bean plant twice a week. Measure their growth.
D. Water one bean plant every day. Water a second bean plant twice a week. Measure their growth.
Why does the Sun look so large in the sky?
A. It is the closest star to Earth.
B. It looks bigger when it looks orange.
C. It is bigger in the summer than it is in the winter.
D. It looks large because it is the largest of all stars.
A. It is the closest star to Earth.
On a sunny day in July, Miriam leaves home on her bicycle to go to the library. She places her bike in the bike rack at the library and works for a couple of hours in the library. After two hours, which of the following changes will Miriam's bicycle most likely have experienced?
A. The dark colored bike seat will have become cold.
B. The dark colored bike seat will have become hot.
C. The dark colored bike seat will have changed colors.
D. The dark colored bike seat will have stayed the same temperature
B. The dark colored bike seat will have become hot.
Which of the following is an example of overcoming gravity?
A. a ball rolling down a hill
B. a bird perched on a branch
C. an apple falling down to the ground
D. a skydiver falling after jumping out of a plane
B. a bird perched on a branch
A group of scientists wanted to know what types of food seagulls ate most often. What would be a good question to start an investigation into this subject?
A. Where do seagulls live?
B. How do seagulls reproduce?
C. Do seagulls like fish or clams?
D. What do seagulls use to fly over the ocean
C. Do seagulls like fish or clams?
Why do all the stars look like small points of light in the night sky?
A. Because all the stars are very far away from Earth.
B. Because all the stars are the same temperature.
C. Because all the stars are the same brightness.
D. Because all the stars are the same size.
A. Because all the stars are very far away from Earth.
On a summer day, Marta held a picnic at the park. She placed one bag of ice on a table in the shade. She placed the second bag of ice on a table in full sunlight. Both bags of ice were the same size and shape. She saw that the ice placed in the Sun melted very quickly. The ice in the shade did not melt as quickly. What of the following best explains the difference?
A. The bags of ice were two different brands.
B. A summer day is usually warmer than a winter day.
C. One picnic table was larger than the other picnic table.
D. Objects heat up more quickly in the sun than the shade.
D. Objects heat up more quickly in the sun than the shade.
Jimmy is playing baseball with friends. Which of his actions keeps the ball from falling to the ground?
A. throwing the ball fast
B. hitting the ball a long way
C. catching the ball in his glove
D. tossing the ball high into the air
C. catching the ball in his glove
Which is the best reason why many scientists choose to work in teams rather than alone?
A. Scientists cannot check their own work for mistakes.
B. Scientists do not have accurate results unless they work in a team.
C. Scientists can more easily share ideas and check results working in a team.
D. Scientists spend too much time on experiments when they work alone.
C. Scientists can more easily share ideas and check results working in a team.
Which statement best describes the Sun?
A. The Sun is closer to Earth than all other stars.
B. The Sun's actual size is larger than all other stars.
C. The Sun's actual size is smaller than all other stars.
D. The Sun is farther away from Earth than all other stars.
A. The Sun is closer to Earth than all other stars.
What time of day is it typically the coldest?
A. 8:00 pm
B. 12:00 am
C. 3:00 am
D. 7:00 am
D. 7:00 am
A student uses a model rocket to observe how an object can overcome the force of gravity. When does the model rocket overcome the force of gravity?
A. When the model rocket goes upward when launched into the air.
B. When the model rocket falls back to the ground after being launched into the air.
C. When the student rests the model rocket on the floor before being launched into the air.
D. When the rocket is lying on the ground after it was launched in the air
A. When the model rocket goes upward when launched into the air.
Terrence is making a poster about energy for a school project. He is placing pictures of objects found in space on his poster. Under each picture, he is writing where the object's energy comes from. Which sentence should he write under a picture of the Sun?
A. Sun’s energy comes from Earth.
B. Sun’s energy comes from the Moon.
C. Sun’s energy comes from within itself.
D. Sun’s energy comes from nearby stars.
C. Sun’s energy comes from within itself.
When seen from Earth, why does the Sun look so much larger than other stars in the sky?
A. It is older than all other stars.
B. It is larger than all other stars.
C. It is hotter than all other stars.
D. It is closer to Earth than all other stars.
D. It is closer to Earth than all other stars.
One hot, summer day, Jack filled a small pool with water. During the day the water in the pool got warmer. The next morning when Jack went outside, he noticed that the water had become cooler. Which statement best explains why the water in the pool became cooler during the night?
A. The Sun was not shining.
B. The Moon was not shining.
C. There were no stars in the sky.
D. There were no clouds in the sky.
A. The Sun was not shining.
Why is an airplane able to stay in the air for a long period of time?
A. The airplane gives off sound and light energy.
B. The airplane has special equipment inside the cabin.
C. The airplane weighs less so gravity does not affect it.
D. The airplane produces a force that overcomes Earth's gravity.
D. The airplane produces a force that overcomes Earth's gravity.
Identify two types of energy that the Sun gives off.
A. light energy and heat energy
B. wind energy and heat energy
C. light energy and electrical energy
D. wind energy and electrical energy
A. light energy and heat energy