How do terraces reduce soil loss?

Terraces cut a steep slope into flat steps held up by low walls. Water slows down on a flat step and soaks in, so soil and nutrients stay in place. Terrace Farming and Soil Loss has students graph soil lost with no terraces, contour rows and terraces at four rainfall levels.

How do you classify an air mass?

An air mass code has two letters. The first shows moisture, and the second shows temperature. Classify Air Masses From Station Data has students subtract dew point from air temperature to find the first letter and use the temperature for the second.

What drives the water cycle?

Energy from the Sun and the pull of gravity drive the water cycle. Sunlight warms water so it evaporates, and gravity brings it back down as precipitation and runoff. Energy and Gravity in the Water Cycle has students name eight arrows on a diagram.

7th Grade Earth Systems Worksheets

Ages 12-13 · 2 sub-topics · Free previews · Print-ready PDFs

Earth systems are the connected parts of the planet, such as air, water, land and living things, that affect one another. There are 10 worksheets for 7th grade, each with an answer key, on human impact on resources and on weather and climate. Terrace Farming and Soil Loss, Track a Hurricane and Forecast Its Path and Urban Heat Island Data Analysis are three of the sheets. Native sheets here practice MS-ESS3-3, MS-ESS3-5, MS-ESS3-2, MS-ESS2-5 and MS-ESS2-4.

Written by Adi Ackerman, Head Teacher

Grade7th Grade

TopicEarth Systems

Frequently Asked Questions

A point source of pollution enters water at one spot, such as a factory pipe. A nonpoint source enters along a wide area, such as fertilizer running off farm fields. Find a Pollution Source With Water Test Data uses both definitions with a river map.

More science worksheets

Explore all of our 7th grade science worksheets, covering matter, energy, forces and motion, waves and light, and more.

Matter Energy Forces and Motion Waves and Light Earth and Space Ecosystems Living Things Earth Science Scientific Method Engineering and Design

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