Severe Weather and Flood Prevention Quiz

The house shown below is built on stilts. The stilts help protect the house from getting damaged by what kind of severe weather?

• flooding

• tornadoes

• snowstorms

• lightning

A levee is a man-made or natural wall that prevents water from entering a certain area. Where would a levee be most helpful?

• beside a river that floods often

• beside a house that may fall easily

• in an area that receives heavy snowfall

• in an area where earthquakes occur often

Why does the Sun appear to be so much brighter than the stars?

• The Sun appears brighter because it is much closer to the Earth than the stars.

• The Sun appears brighter because it is much bigger than the stars.

• The Sun appears brighter because it is much hotter than the stars.

• The Sun appears brighter because it gives out more light compared to the stars.

Beth added a piece of metal to a test tube that contained an acid. She observed bubbles forming on the surface of the metal. What does the formation of bubbles in this experiment show?

• Reaction with the acid caused the metal to burn up.

• The metal reacted with the acid but did not form a new substance.

• The metal caused the acid to go through a physical change.

• The metal reacted with the acid to form a new substance.

Jackson is performing a scientific investigation to find out what happens when he puts different objects in water. He fills a bowl with water and collects various objects to put in the water. After Jackson puts the objects in the water, he notices that some of the objects sink and others float. Which of the following is true about the objects?

• The objects that float must have a smaller volume than the objects that sink.

• The objects that float must have a greater mass than the objects that sink.

• The objects that float must have a lower density than the objects that sink.

• The objects that float must be more soluble than the objects that sink.

Samir and his mother rowed a boat on the lake. When they stopped in a shallow area, Samir dropped a rock over the side of the boat. He watched the rock move down through the water until it reached the bottom of the lake. What does this show?

• Gravity does not affect objects in the water.

• Gravity pulls toward dry land.

• Gravity pulls all objects toward water.

• Gravity pulls downward toward the center of the Earth.

Norah wants a new plant to brighten up her apartment. Because the city where she lives is cold for most of the year, her plant must stay inside on the windowsill. If the plant is never outside, how will it get the energy it needs for photosynthesis?

• It will use indirect sunlight coming through the window.

• It will use energy from the heat in the room.

• It will use energy from electricity in the room.

• It will use water and nutrients from the soil in its pot.

What did astronomers eventually learn about the center of the Solar System?

• The Earth is at the center

• The Moon is at the center

• The Sun is at the center

• Mars is at the center

Judith wants to test how the different surfaces around her house will affect how her wind-up toy car moves. She tests it on the carpet in her bedroom, the concrete of the sidewalk outside, the tile in her bathroom, and the wood of her back porch. Each time, she turns the key two times and then measures how far the car travels. Her results are in the table below. What can Judith conclude about the friction created by the different surfaces?

• The wood creates more friction than the carpet.

• The tile creates more friction than the wood.

• The concrete creates more friction than the tile.

• The carpet creates more friction than the concrete.

Which of these would be best to test to decide if the student's storm shutter design is successful?

• how strong the shutters are

• how colorful the shutters are

• how much plywood was used to make the shutters

• how much the shutters cost to make