Fourth Quarter Examination in Science 4

What is the main component of sandy soil?

• Clay particles

• Organic matter

• Water molecules

• Large rock particles

Why does sandy soil drain water quickly?

• Because it has many small air pockets

• Because it absorbs water like a sponge

• Because it contains a lot of organic matter

• Because it has large particles with large spaces

What is the best description of loamy soil?

• A type of soil that contains only clay particles

• A type of soil that does not support plant growth

• A soil that is mostly sand and drains very quickly

• A mixture of sand, silt, and clay that holds water well

If a farmer wants to improve soil drainage, which type of soil should they add?

• Clay

• Loam

• Sand

• Silt

How is silt different from sand?

• Silt is coarser than sand

• Silt does not absorb water at all

• Silt holds more water than sand does

• Silt particles are larger than sand particles

What is one of the basic needs of all living things?

• Air

• Soil

• Sunlight

• Water

Your pet is looking weak and tired. What should you do first?

• Take it outside

• Give it more food

• Let it sleep longer

• Give it water to drink

How is water important to both plants and animals?

• It is needed for breathing

• It keeps plants dry and animals warm

• It allows animals to fly and plants to move

• It helps plants grow and keeps animals hydrated

What do plants need from the soil to grow?

• Air

• Nutrients

• Sunlight

• Water

Which type of soil is best for plant growth?

• Clay

• Loam

• Sand

• Silt