π Topic Summary
In science, a fair test is like a game where you only change one thing to see what happens. This 'one thing' is called a variable. Everything else must stay the same, so you know that the change you made is the only thing affecting the result. Think of it like baking cookies πͺ. If you want to see if using brown sugar instead of white sugar makes a difference, you need to keep everything else (like the amount of flour, butter, and baking time) the same!
When we do fair tests, we change just one thing (the independent variable) and measure what happens (the dependent variable). Everything else we keep the same is called controlled variables. This way, we can be sure our results are accurate and reliable!
π§ͺ Part A: Vocabulary
Match the words with their meanings:
| Word |
Definition |
| 1. Variable |
A. Things we keep the same |
| 2. Fair Test |
B. What we measure |
| 3. Controlled Variables |
C. Changing only one thing to see what happens |
| 4. Dependent Variable |
D. The one thing we change |
| 5. Experiment |
E. A scientific test |
π Part B: Fill in the Blanks
Complete the sentences using the words: variable, fair test, same, results, change.
- In a __________, you only __________ one thing.
- The thing you change is called a __________.
- All other things must stay the __________.
- We look at the __________ to see what happened.
π€ Part C: Critical Thinking
Imagine you are testing which type of paper airplane flies the farthest. What are three things you would need to keep the same to make it a fair test?