Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 79 · 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 of these goes backward? (a) the rocket (b) water from the oars (c) the swimmer (d) the balloon
2. 2.⚖️ 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
3. 3.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a balloon (d) vinegar
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
6. 6.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the balloon
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a long string (d) a drinking straw
8. 8.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
9. 9.True or false: water from the oars goes forward. (a) False (b) True
10. 10.🧺 Do we need sticky tape 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 “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
14. 14.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) a drinking straw (d) turmeric powder
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a balloon (d) a battery cell
16. 16.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
17. 17.True or false: water a swimmer pushes goes backward. (a) False (b) True
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🚀 Which of these goes backward? (a) the swimmer (b) water a swimmer pushes (c) the rowing boat (d) the balloon
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
21. 21.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a magnet (d) a balloon
23. 23.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
24. 24.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
26. 26.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) vinegar (c) yeast (d) a magnet
28. 28.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
29. 29.⚖️ 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
30. 30.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
31. 31.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
32. 32.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
33. 33.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the slope of the string (c) distance it travels (d) the same straw
39. 39.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
40. 40.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward

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