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Lesson 17 of 84 ยท Human Impacts on Earth

Experiment

Peer Review in Science

What You'll Learn

Peer review is how scientists check each other's work. Before research is published, other experts evaluate the methods, data, and conclusions to ensure they are valid.

Key Words

  • iteration
  • wavelength

Materials Needed

  • cups
  • aluminum foil
  • ruler

Safety First

  • Adult supervision recommended.
  • Do not taste any materials.
  • Wear safety goggles when mixing liquids.

Steps

Step 1 โ€” Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 โ€” Do

Design and build a bridge from newspaper and tape that can hold a textbook. Test it and redesign to make it stronger.

Step 3 โ€” Observe

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

Step 4 โ€” Record

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

Check Your Understanding

Question 1

1 of 3

What is a prototype?

Peer Review in Science โ€” Human Impacts on Earth | 7th Grade Science | LittleActivity | LittleActivity