Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 602 · 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.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
2. 2.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the rocket
3. 3.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
4. 4.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) a magnet
6. 6.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
7. 7.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
8. 8.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the balloon
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
10. 10.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) how big we blow it (c) distance it travels
12. 12.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
13. 13.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a long string (d) turmeric powder
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
16. 16.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
17. 17.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
18. 18.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the swimmer
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
20. 20.True or false: air from the balloon goes backward. (a) False (b) True
21. 21.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
23. 23.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
24. 24.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
25. 25.🚀 Which of these goes backward? (a) the balloon (b) gas from the rocket (c) the rocket (d) the swimmer
26. 26.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.True or false: water from the oars goes forward. (a) True (b) False
29. 29.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
31. 31.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a battery cell (d) a balloon
33. 33.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) sticky tape (d) a mirror
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
36. 36.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the rocket (d) water from the oars
37. 37.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
38. 38.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it

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