Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 113 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
2. 2.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
5. 5.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
6. 6.True or false: the swimmer goes forward. (a) False (b) True
7. 7.🛟 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
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same tape
9. 9.True or false: a long string is needed for the balloon rocket. (a) False (b) True
10. 10.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) sticky tape (d) vinegar
12. 12.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
13. 13.⚖️ 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 keep it the same (c) we measure it
14. 14.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the swimmer
15. 15.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
16. 16.🔮 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
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same string (c) how big we blow it (d) distance it travels
18. 18.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
19. 19.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) a mirror (d) turmeric powder
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
22. 22.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.True or false: water from the oars goes forward. (a) False (b) True
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.⚖️ 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 string (c) how big we blow it
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) yeast
28. 28.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
29. 29.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) a mirror (d) a battery cell
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) the same string (d) the slope of the string
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) two chairs (c) a long string (d) a drinking straw
32. 32.True or false: gas from the rocket goes backward. (a) True (b) False
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
35. 35.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) sticky tape (d) a magnet
37. 37.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a magnet (c) turmeric powder (d) a battery cell
39. 39.📘 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
40. 40.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed

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