Ocean Currents and Climate

What You'll Learn

Ocean currents distribute heat around the planet, affecting climate worldwide. Warm currents flow from the equator toward the poles, and cold currents flow from the poles toward the equator.

Key Words

metamorphic
sedimentary

Materials Needed

newspaper
spray bottle
cups
thermometer
rain gauge

Safety First

Be careful with scissors — ask an adult for help if needed.
Do not look directly at the sun or bright lights.
Clean up spills immediately to prevent slipping.

Steps

Step 1 — Read

Read about Earth Systems and write down three key facts.

Step 2 — Do

Investigate soil layers: fill a jar with soil and water, shake it, and let it settle overnight. Identify the layers of clay, silt, sand, and organic matter.

Step 3 — Observe

Watch carefully for any changes and note the time.

Step 4 — Record

Create a data table to organize your measurements.

Check Your Understanding

Question 1

1 of 3

What causes wind?