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7th Grade Human Body Systems Worksheets

Ages 12-13 · Free previews · Print-ready PDFs

Written by Adi Ackerman, Head Teacher

Body systems are groups of organs and cells that work together, such as the nervous system that carries signals and the respiratory system that moves gases. There are 3 sheets for 7th grade here, each with an answer key. Neurons and Nerve Signals has students label a neuron and number six steps of a signal. Reflex Arcs and Reaction Time Data labels a reflex arc and graphs reaction times, and Gas Exchange in the Alveoli compares inhaled and exhaled air. Two sheets practice MS-LS1-8 and one practices MS-LS1-3.

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Frequently Asked Questions

Dendrites receive the signal and pass it to the cell body. It then travels along the axon, where myelin lets it jump between gaps, and chemicals carry it across a synapse to the next cell. Neurons and Nerve Signals has students number these steps.

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