A hypothesis is a testable explanation for something you observe. It's a starting point for further investigation. A good hypothesis is clear, concise, and includes both a proposed cause and effect. When forming a hypothesis, think about what you already know about the topic and what you expect to happen. Remember that a hypothesis isn't necessarily correct—it's just a starting point that you can test through experiments and observations.
For example, imagine you notice that plants grow taller in sunny spots. Your hypothesis might be: "If a plant receives more sunlight, then it will grow taller." You can then design an experiment to test this hypothesis by comparing the growth of plants in sunny and shady locations. Whether your experiment supports or refutes your initial hypothesis, it helps you deepen your understanding!
Match the term with the correct definition:
| Term | Definition |
|---|---|
| 1. Hypothesis | A. A factor that is changed in an experiment |
| 2. Independent Variable | B. A possible explanation for an observation |
| 3. Dependent Variable | C. Information collected during an experiment |
| 4. Control Group | D. A group that does not receive any treatment |
| 5. Data | E. A factor that is measured in an experiment |
Match the numbers and letters to show the correct pairs (e.g., 1-B)
Fill in the missing words in the paragraph below.
A good _________ is testable. It is a _________ explanation for an observation that can be tested through experiments. The _________ variable is the factor you change, while the _________ variable is the factor you measure. The _________ group is used for comparison.
Imagine you want to investigate whether different types of fertilizer affect plant growth.
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