Exploring Hypotheses
A Grade 3 science worksheet to help students understand what a hypothesis is and how to form one.
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Exploring Hypotheses
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Read each question carefully and answer to the best of your ability. A hypothesis is an idea or guess about something that you can test.
1. What is a hypothesis? Write it in your own words.
2. Which of these is the best example of a hypothesis?
I wonder if plants need water.
If I give the plant more water, then it will grow taller.
Plants are green.
I like plants.
3. Complete the following hypothesis: If I drop a ball and a ball at the same time, then the ball will hit the ground first.
4. A hypothesis is always true.
True
False
5. You notice that your friend's plant is growing much faster than yours. Form a hypothesis about why this might be happening. Remember to make it testable!
6. Look at the image of the magnifying glass. If you use a magnifying glass to look at a leaf, what do you hypothesize you will see?