Science Quiz

Horatio was sitting by a campfire watching the logs burn. Which of the following is true?

• The fire produces no change the logs

• The fire produces physical changes in the logs

• The ashes left behind are a new substance

• The ashes left by the logs are going to made into new logs

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Patrick left his pumpkin sitting on the porch for three months. When his mom went to throw the pumpkin in the trash, she noticed that it had black spots on it and it was soft and smelly. What kind of change had occurred to the pumpkin?

• The pumpkin had rusted

• The pumpkin had grown

• The pumpkin had decayed

• The pumpkin had gained mass

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Roberto got a new bicycle for his birthday. He is careful to put it away before it rains. Why would Roberto want to keep his bicycle out of the rain?

• He doesn't want rust to form on his bicycle

• He doesn't want his bicycle seat to decay

• He doesn't want ash to form on his bicycle

• He doesn't want his bicycle seat to rust

Josh put a piece of white bread in the toaster. When it was done, he had a new material, toast. Which of the following is NOT evidence that toast is a new material?

• The toast is much harder than the bread

• The toast smelled different than the bread

• The toast was a different color than the bread

• You cannot change the toast back into white bread

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What is the result of a change in matter?

• The matter stays the same

• The matter gets more massive

• The matter gets less massive

• New material is formed

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Francisco was investigating a pair of magnets. He placed a finger near the S on each magnet and moved them closer together. What did the magnets do?

• The magnets will pull toward each other

• The magnets will push away from each other

• The magnets will flip around so the N and S are beside each other

• The magnets will totally lose their magnetism

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Susanna found a magnet in the back seat of her mom's car. She touched it to several objects. Which object below did the magnet attract?

• A copper penny

• An iron nail

• A plastic ink pen

• A rubber floor mat

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NGSS.MS-PS2-5

Taliyah placed two magnets close to one another. She felt them attract each other. Which statement explains why this happened?

• The poles are facing each other

• The N pole is stronger than the S pole

• The S pole has a magnetic field

• The opposite poles are facing each other

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Which word describes the type of materials that attract iron?

• Chemical

• Massive

• Magnetic

• Mysterious

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Here you see two bar magnets that are hanging from strings. Which of the following explanations gives the best reason why the magnets stuck together?

• The North pole of magnet 1 and the South pole of magnet 2 are attracting each other

• The South pole of magnet 1 and the South pole of magnet 2 are attracting each other

• The North pole of magnet 1 and the North pole of magnet 2 are attracting each other

• Magnets always attract each other

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