Science Quiz

Picture a large desk in your classroom. Pretend it is full of books, paper, pencils, and notebooks. You have to push it with a certain force to get it to move. Your teacher asks you to take everything out of the desk. What would happen to the motion of the desk as a result of removing all the materials?

• The mechanical energy is decreased, making the desk move faster.

• The friction is increased, making the desk move slower.

• The gravity increases, which makes the desk move slower.

• The mass is decreased, which makes the desk move faster.

Mr. Jefferson is conducting an experiment to see how caterpillars react to light. He first places a shoebox under a lamp and puts a lid on only half the box for shade. Then he places 6 caterpillars in the box on the lighted side. Mr. Jefferson takes notes during his experiment. After waiting an hour, he sees that all the caterpillars have crawled over to the shaded side of the shoebox. When writing his conclusion, what would be an accurate statement of his observations and NOT an opinion?

• Caterpillars like living on the ground.

• Caterpillars prefer darker areas to ones with more light.

• Caterpillars like to stay together in groups.

• Caterpillars are afraid of light.

Billy is doing a test on a new rock he found. The first thing he does is try to scratch it with his finger. It did not leave a mark, so he tried to scratch it with a toothpick; still nothing. It didn’t even make a mark on the rock when he tried to scratch it with a penny. What physical property is Billy trying to test on his new rock?

• Hardness

• Cleavage

• Streak

• Luster

Sarah’s experiment was very detailed. She completed the steps below:

- She collected several small objects made of different kinds of material, like wood, plastic, and metal.

- She then placed the various objects in a large bin on the table.

- With a large magnet, she touched each object (one at a time) to see if she could lift them up.

- She recorded her observations in her science journal.

Which statement shows what Sarah is most likely testing?

• Checking to see what materials are attracted to a magnet.

• B. Comparing if lighter materials are more attracted to magnets than heavier ones.

• C. Seeing if larger magnets can pick up objects easier than smaller magnets.

• Test to see how many objects she can pick up with one magnet.

She collected several small objects made of different kinds of material, like wood, plastic, and metal. She then placed the various objects in a large bin on the table. With a large magnet, she touched each object (one at a time) to see if she could lift them up. She recorded her observations in her science journal. Which statement shows what Sarah is most likely testing?

• Checking to see what materials are attracted to a magnet.

• Comparing if lighter materials are more attracted to magnets than heavier ones.

• Seeing if larger magnets can pick up objects easier than smaller magnets.

• Test to see how many objects she can pick up with one magnet.

Earth’s weathering and erosion processes cause many different surface features to form. Which one of the following describes a change due to erosion only?

• Freezing ice made a big boulder split and it rolled down the mountain.

• Waves at the seashore moving sand back and forth.

• A rock falling over a waterfall into a lake below.

• Wind blowing sand onto a rock, making it smaller.

Pablo is testing to see what type of ants are more attracted to sugar. Why should Pablo write down the steps of his experiment in detail?

• So he can choose which ant will win and publish it for other scientists to see.

• The results would remind people not to take sweet snacks out camping.

• So another person does not do the same experiment, because that would be cheating.

• So another student can repeat the exact same experiment and compare the results.

Plants have many parts that play an important role in their survival. The leaves are some of those parts. What human body part and activity is most like the role of leaves in a plant?

• The brain controlling all movement and actions of the body.

• The lungs breathing in oxygen and breathing out carbon dioxide.

• The skeleton helping the body stand tall and not fall down.

• The stomach moving food and water throughout the body.

The north star is the nickname given to the brightest star in the sky. Yet, there are millions of other stars in the sky, most of which give off more light than the north star. So, which best explains why the north star is the brightest star in our night sky?

• The north star has more potential energy than other stars.

• The north star is a different color which makes it seem brighter.

• The north star is much larger than other stars.

• The north star is closer to Earth than other stars.

Jaquez is using a soccer ball to demonstrate how energy can change and be transferred from one form to another. Which of the following activities does NOT show a change of energy with Jaquez and the soccer ball?

• Jaquez bounces the soccer ball on his head.

• Jaquez flips the ball over his head and catches it behind his back.

• Jaquez is getting ready to kick the ball over the fence.

• Jaquez is rolling the ball to his friend so he can kick it.