Wind and Air Pressure

What You'll Learn

Caves form when slightly acidic water dissolves limestone over thousands of years. Stalactites hang from the ceiling and stalagmites grow from the floor as minerals are deposited.

Key Words

landform
soil
rock cycle

Materials Needed

magnifying glass
newspaper
spray bottle
cups

Safety First

Do not look directly at the sun or bright lights.
Clean up spills immediately to prevent slipping.
Use materials only as directed in the experiment.

Steps

Step 1 — Read

Read and learn: Caves form when slightly acidic water dissolves limestone over thousands of years. Stalactites hang from the ceiling and stalagmites grow from the floor as minerals are deposited.

Step 2 — Do

Create a labeled diagram of what you built or observed.

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

Record your observations in your science journal.

Check Your Understanding

Question 1

1 of 3

What is sediment?