Understanding Rocks and Soil Concepts

What is the main topic of this video?

• The water cycle

• The rock cycle

• How plants grow

• Types of soil

When you shake soil in water, what settles at the very bottom first?

• Humus

• Clay

• Sand

• Water

What part of a plant helps make new soil from solid rock?

• Leaves

• Flowers

• Roots

• Stems

What kind of grains does sandstone have?

• Square grains

• Interlocking grains

• Rounded grains

• Tiny grains

Why does sandstone make bubbles when put in water?

• It is very cold

• It has air spaces

• It is a type of fish

• It is made of metal

What is granite made from?

• Bits of sand

• Dead plants

• Molten rock that cools

• Sea shells

What is the process called when rocks break into smaller pieces?

• Growing

• Weathering

• Melting

• Floating

What happens to rocks when water freezes inside their cracks?

• They get smoother

• They get stronger

• They crack more

• They turn into sand

What are rocks called that change their form because of heat and pressure?

• Igneous rocks

• Sedimentary rocks

• Metamorphic rocks

• Soft rocks

What is the name for the big cycle where rocks change from one type to another?

• The water cycle

• The life cycle

• The rock cycle

• The weather cycle