Understanding Hypotheses
A Grade 4 science worksheet introducing students to the concept of a hypothesis, its components, and how to formulate one.
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Understanding Hypotheses
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Read each question carefully and answer to the best of your ability. A hypothesis is an educated guess or a testable answer to a question.
What is a Hypothesis?
In science, a hypothesis is a special kind of guess. It's an educated guess that you can test with an experiment. It often follows an 'If... then...' statement. For example: 'If I water the plant every day, then it will grow taller.'
1. Which of the following best describes a hypothesis?
A random guess about something.
An educated guess that can be tested.
A fact that is always true.
The result of an experiment.
2. A good hypothesis often includes which words?
Maybe, perhaps.
I wish, I hope.
If, then.
Always, never.
3. A hypothesis is an guess.
4. You can a hypothesis with an experiment.
5. A hypothesis is always proven to be true.
True
False
6. An 'If...then...' statement is a good way to write a hypothesis.
True
False
7. Imagine you want to know if plants grow better with more sunlight. Write a hypothesis using an 'If...then...' statement.
8. Look at the image below. If you were a scientist, what is one question you might ask about what you see? Then, write a hypothesis to answer your question.

My Question:
My Hypothesis: