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

precipitation
water cycle
natural resource

Steps

Step 1 — Read

Review the background information on Weather and Climate before starting.

Step 2 — Do

Set up a weather station: use a thermometer, rain gauge (a jar with a ruler), and wind sock (a plastic bag on a stick). Record data for one week.

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

What is sediment?