Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 53 · 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? Which of these is what we measure? (a) how big we blow it (b) the same tape (c) the same straw (d) distance it travels
2. 2.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a balloon (d) vinegar
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) turmeric powder (c) a drinking straw (d) a balloon
8. 8.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
9. 9.True or false: gas from the rocket goes forward. (a) False (b) True
10. 10.True or false: gas from the rocket goes backward. (a) True (b) False
11. 11.True or false: yeast is needed for the balloon rocket. (a) False (b) True
12. 12.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) air from the balloon
13. 13.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
14. 14.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) water from the oars (d) air from the balloon
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a balloon (d) a magnet
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a long string (c) a drinking straw (d) two chairs
17. 17.True or false: the balloon goes forward. (a) False (b) True
18. 18.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
19. 19.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
21. 21.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
23. 23.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
24. 24.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
25. 25.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
26. 26.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a mirror (d) sticky tape
28. 28.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) vinegar
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) a long string (d) vinegar
31. 31.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
32. 32.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
33. 33.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
34. 34.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: the balloon goes backward. (a) True (b) False
36. 36.🚀 Which of these goes backward? (a) the rowing boat (b) gas from the rocket (c) the balloon (d) the rocket
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a drinking straw (d) yeast
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a balloon (d) a long string
40. 40.True or false: air from the balloon goes backward. (a) True (b) False

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