Clouds and Weather Prediction

What You'll Learn

Clouds form when water vapor rises, cools, and condenses on tiny particles in the atmosphere. Different cloud types—cumulus, stratus, cirrus—indicate different weather conditions.

Key Words

watershed
erosion
weathering

Materials Needed

newspaper
spray bottle
cups
thermometer

Safety First

Use materials only as directed in the experiment.
Keep small objects away from young children.
Work in a well-ventilated area when using vinegar or other strong-smelling substances.

Steps

Step 1 — Read

Read and learn: Clouds form when water vapor rises, cools, and condenses on tiny particles in the atmosphere. Different cloud types—cumulus, stratus, cirrus—indicate different weather conditions.

Step 2 — Do

Gather your materials and set up your workspace.

Step 3 — Observe

Use your senses (except taste) to describe what you notice.

Step 4 — Record

Write a summary of your findings in 3-5 sentences.

Check Your Understanding

Question 1

1 of 3

What is precipitation?