Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 693 · 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.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water from the oars (d) the rocket
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) the slope of the string (d) distance it travels
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
5. 5.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
6. 6.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rowing boat (d) water a swimmer pushes
7. 7.True or false: water a swimmer pushes goes forward. (a) True (b) False
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a long string (d) a mirror
9. 9.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
10. 10.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
11. 11.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
12. 12.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) throw them away safely (d) give them to a baby
13. 13.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) gas from the rocket (d) air from the balloon
14. 14.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a magnet (d) two chairs
16. 16.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) sticky tape (d) turmeric powder
19. 19.🛟 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
20. 20.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the balloon (d) the rowing boat
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
22. 22.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a battery cell (d) vinegar
24. 24.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.🚀 Which of these goes forward? (a) gas from the rocket (b) the balloon (c) water from the oars (d) water a swimmer pushes
27. 27.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) a magnet (d) two chairs
28. 28.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
29. 29.⚖️ 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 keep it the same (c) we measure it
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) two chairs (d) a drinking straw
32. 32.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) vinegar (d) a drinking straw
34. 34.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
35. 35.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) yeast (d) a balloon
39. 39.⚖️ 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) the same string (c) the same tape (d) how big we blow it
40. 40.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False

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