Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 136 · 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.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
2. 2.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
3. 3.True or false: a long string is needed for the balloon rocket. (a) True (b) False
4. 4.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
5. 5.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
6. 6.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
7. 7.⚖️ 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) how big we blow it (d) the same string
8. 8.🔮 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
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a magnet (d) a drinking straw
10. 10.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
13. 13.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
16. 16.⚖️ 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
17. 17.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
18. 18.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
19. 19.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
21. 21.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the rocket
22. 22.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) yeast (d) two chairs
25. 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
27. 27.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
28. 28.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
29. 29.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
30. 30.True or false: the rocket goes forward. (a) False (b) True
31. 31.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
32. 32.⚖️ 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 keep it the same (c) we measure it
33. 33.⚖️ 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 string
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a magnet (d) a battery cell
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) a magnet
36. 36.True or false: the swimmer goes backward. (a) True (b) False
37. 37.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the balloon (d) water a swimmer pushes
38. 38.⚖️ 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
39. 39.True or false: air from the balloon goes backward. (a) False (b) True
40. 40.📘 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

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