Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 686 · 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: the rocket goes backward. (a) True (b) False
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
3. 3.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a battery cell (d) two chairs
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
6. 6.True or false: gas from the rocket goes forward. (a) False (b) True
7. 7.⚖️ 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
8. 8.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
9. 9.🔮 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
10. 10.🎈 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
11. 11.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
12. 12.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
14. 14.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a drinking straw (d) a long string
16. 16.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
17. 17.True or false: water a swimmer pushes goes backward. (a) False (b) True
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a battery cell (d) two chairs
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a balloon (d) sticky tape
20. 20.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
21. 21.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the balloon (d) the rowing boat
22. 22.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) yeast (d) a balloon
24. 24.True or false: air from the balloon goes forward. (a) True (b) False
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) it stays still (d) straight down
26. 26.⚖️ 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
27. 27.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a battery cell (d) sticky tape
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
32. 32.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
33. 33.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) yeast (d) a magnet
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same string (d) distance it travels
35. 35.🚀 Which of these goes forward? (a) the swimmer (b) gas from the rocket (c) water from the oars (d) air from the balloon
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
37. 37.True or false: air from the balloon goes backward. (a) True (b) False
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) yeast (d) a drinking straw
39. 39.⚖️ 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
40. 40.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False

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