Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 995 · 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 is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) vinegar (d) a balloon
2. 2.True or false: water a swimmer pushes goes backward. (a) False (b) True
3. 3.True or false: the balloon goes forward. (a) False (b) True
4. 4.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
6. 6.⚖️ 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
7. 7.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) a mirror
9. 9.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a drinking straw (d) a long string
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a battery cell (d) two chairs
13. 13.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) air from the balloon (d) gas from the rocket
14. 14.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
15. 15.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the balloon
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) two chairs (d) yeast
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) vinegar (d) sticky tape
19. 19.🔮 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
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
21. 21.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a sundial (d) a mirror
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) sticky tape (d) two chairs
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) a magnet
25. 25.True or false: the rowing boat goes backward. (a) False (b) True
26. 26.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the balloon (d) air from the balloon
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
31. 31.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) the same tape (d) the same string
33. 33.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
34. 34.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
35. 35.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) sticky tape (d) two chairs
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
39. 39.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) turmeric powder (d) a long string

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