Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 869 · 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) air from the balloon (b) the balloon (c) the swimmer (d) the rocket
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) a magnet (d) vinegar
3. 3.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
4. 4.🔮 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
5. 5.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
6. 6.True or false: the swimmer goes backward. (a) True (b) False
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) vinegar (d) a balloon
8. 8.🎈 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
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) a drinking straw (d) a balloon
12. 12.True or false: yeast is needed for the balloon rocket. (a) True (b) False
13. 13.⚖️ 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
14. 14.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a battery cell (d) a balloon
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) a long string (d) sticky tape
17. 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the same string (d) the same tape
19. 19.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) keep them in your mouth (d) give them to a baby
22. 22.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
23. 23.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
24. 24.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
25. 25.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the balloon
26. 26.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
28. 28.True or false: the balloon goes backward. (a) False (b) True
29. 29.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
30. 30.⚖️ 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
31. 31.True or false: the swimmer goes forward. (a) True (b) False
32. 32.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a battery cell (d) a drinking straw
34. 34.⚖️ 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 change it (c) we measure it
35. 35.True or false: the rowing boat goes backward. (a) True (b) False
36. 36.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a mirror (d) a sundial
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a mirror (c) a magnet (d) vinegar
38. 38.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rowing boat (d) air from the balloon
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False

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