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Lesson 47 of 84 · Engineering and Design
ExperimentForming a Hypothesis (Part 3)
What You'll Learn
A hypothesis is a testable prediction about what will happen in an experiment. A good hypothesis is specific and based on prior knowledge or observations.
Key Words
- variable
- experiment
Materials Needed
- plastic wrap
- cardboard
- tape
- scissors
- straws
Safety First
- Handle glass items carefully to avoid breakage.
- Do not mix unknown chemicals together.
- Tie back long hair before starting the experiment.
Steps
Step 1 — Read
Read and learn: A hypothesis is a testable prediction about what will happen in an experiment. A good hypothesis is specific and based on prior knowledge or observations.
Step 2 — Do
Build your model using the materials provided.
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 3What is the dependent variable?