Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 978 · 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.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
4. 4.⚖️ 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
5. 5.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
6. 6.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) how big we blow it (c) the same straw (d) distance it travels
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) vinegar (c) a balloon (d) a long string
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) a mirror (d) a long string
10. 10.⚖️ 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 string
11. 11.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
13. 13.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a battery cell (d) a drinking straw
15. 15.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a mirror (d) yeast
16. 16.True or false: the swimmer goes forward. (a) True (b) False
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a long string (c) a balloon (d) two chairs
18. 18.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
19. 19.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
20. 20.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
21. 21.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a balloon (d) turmeric powder
23. 23.True or false: air from the balloon goes backward. (a) False (b) True
24. 24.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) water a swimmer pushes (d) the rowing boat
25. 25.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
26. 26.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
27. 27.🔮 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
28. 28.True or false: gas from the rocket goes forward. (a) True (b) False
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the rocket
32. 32.⚖️ 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
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
34. 34.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
35. 35.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) air from the balloon (d) the swimmer
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a drinking straw (d) a long string
37. 37.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
38. 38.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
39. 39.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
40. 40.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the rowing boat

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