Science CBA Review February 2021

Which of the following is NOT a component of soil?

• Plants

• Rock

• Animals

• Plastic

What is one way weathering occurs to break down rocks into soil?

• Water gets into the cracks of the rock. When it gets hot, the water boils and the rocks break apart.

• Water gets into the cracks of the rock. When it gets cold, the water freezes into ice and expands, causing the rocks to break apart.

• Wind blows ice into rocks and the ice breaks them apart.

• Gravity causes the rocks to float above the ground, then they fall and break.

What is weathering?

• The breaking down of plants and animals into the soil.

• The carrying away of soil by water from one place to the next.

• The breaking apart of rocks into smaller particles by wind, water, and gravity.

• The temperature in one location.

What is NOT an effect of volcanos?

• Volcanoes can sing "I Lava You."

• Volcanoes erupt, causing ash and molten rock to spew out.

• Volcanoes erupt and can cause the land to be fertile and have more minerals that are good for plants to grow.

• Volcanoes can cause new land to form.

Earthquakes are caused by ____________.

• Kids playing Go Noodle in their classroom.

• a large wave that comes onto land.

• landslides.

• plates on the Earth's surface that shift and run into each other.

"Rocks and debris that fall down a slope rapidly" describes what land change?

• Volcanoes

• Earthquakes

• Landslides

• Glaciers

Why is the wood we get from trees useful for building?

• It can be cut into shapes.

• It is soft and easy to mold.

• It can burn easily.

• It is difficult to cut.

Why is metal useful for building?

• It can be cut easily with scissors.

• It can be melted into a liquid to pour over a building.

• It can be bent into shapes.

• It can be eaten.

Check all the things that can be made from plants.

• Clothes

• Pencils

• Steak

• Water Bottles

• Houses

How can you reduce your water use?

• Take longer showers.

• Use fewer paper towels when drying your hands.

• Leave the water running when brushing your teeth.

• Take shorter showers.