Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 916 · 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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
2. 2.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
3. 3.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the swimmer
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) a magnet (d) a long string
5. 5.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a mirror (d) a long string
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) vinegar (d) a balloon
8. 8.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
9. 9.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) a magnet pulls it (d) the straw is heavy
10. 10.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
11. 11.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
13. 13.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
14. 14.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
15. 15.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a mirror (d) a balloon
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) two chairs (d) a drinking straw
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
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 keep it the same (b) we change it (c) we measure it
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a long string (d) sticky tape
22. 22.⚖️ 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) distance it travels (d) the same tape
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same string (d) the same straw
24. 24.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
25. 25.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
26. 26.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
27. 27.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
28. 28.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
30. 30.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
31. 31.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
32. 32.True or false: a long string is needed for the balloon rocket. (a) True (b) False
33. 33.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
35. 35.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) yeast (c) a magnet (d) a battery cell
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
39. 39.⚖️ 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
40. 40.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True

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