Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 741 · 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 is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
2. 2.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
3. 3.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
4. 4.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
5. 5.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) vinegar (d) yeast
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) yeast (d) two chairs
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a magnet (d) a drinking straw
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a mirror (d) a drinking straw
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same tape
12. 12.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) yeast (d) a long string
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it speeds up (d) it goes backward first
15. 15.True or false: the swimmer goes backward. (a) True (b) False
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) a balloon (d) two chairs
17. 17.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
18. 18.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
19. 19.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
20. 20.⚖️ 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) True (b) False
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
22. 22.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
23. 23.⚖️ 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
24. 24.True or false: the rowing boat goes backward. (a) True (b) False
25. 25.True or false: water from the oars goes forward. (a) False (b) True
26. 26.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a long string (d) a drinking straw
28. 28.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
29. 29.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
30. 30.True or false: the balloon goes backward. (a) False (b) True
31. 31.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the rocket
32. 32.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
33. 33.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
34. 34.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
35. 35.True or false: the rowing boat goes forward. (a) True (b) False
36. 36.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rocket (d) the rowing boat
37. 37.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
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 keep it the same (b) we change it (c) we measure it
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a long string (d) two chairs

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