Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 499 · 40 questions

What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.

1. 1.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
3. 3.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) when it turns blue (d) it never stops
4. 4.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
5. 5.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
8. 8.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a magnet (d) sticky tape
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the slope of the string (c) distance it travels (d) how big we blow it
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) how big we blow it (d) the same straw
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) sticky tape (d) a long string
14. 14.True or false: water a swimmer pushes goes backward. (a) True (b) False
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a long string (d) vinegar
16. 16.True or false: the swimmer goes backward. (a) True (b) False
17. 17.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a long string (d) turmeric powder
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
20. 20.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
21. 21.True or false: a long string is needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
24. 24.True or false: the balloon goes backward. (a) True (b) False
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a mirror (d) a long string
26. 26.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
27. 27.🚀 Which of these goes forward? (a) the rocket (b) gas from the rocket (c) water from the oars (d) water a swimmer pushes
28. 28.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
29. 29.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a balloon (d) sticky tape
31. 31.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
33. 33.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the straw is heavy (d) the string pulls it
34. 34.True or false: water a swimmer pushes goes forward. (a) False (b) True
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.🚀 Which of these goes backward? (a) the rowing boat (b) gas from the rocket (c) the swimmer (d) the rocket
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a battery cell (d) two chairs
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
40. 40.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the balloon (d) gas from the rocket

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