Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 209 · 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? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the slope of the string (d) the same tape
5. 5.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
6. 6.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
7. 7.🎈 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
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a long string (d) two chairs
9. 9.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a long string (d) vinegar
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
12. 12.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the balloon (d) air from the balloon
13. 13.🎈 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
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) turmeric powder (d) a drinking straw
15. 15.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a battery cell (d) two chairs
17. 17.True or false: the swimmer goes backward. (a) False (b) True
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
19. 19.🛟 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
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a balloon (d) a long string
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) vinegar (d) yeast
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) distance it travels (d) the slope of the string
25. 25.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the balloon (d) water from the oars
26. 26.⚖️ 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) the same straw (c) distance it travels
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) vinegar (c) a long string (d) a drinking straw
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
29. 29.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
30. 30.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) vinegar (d) a long string
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
33. 33.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
34. 34.True or false: yeast is needed for the balloon rocket. (a) False (b) True
35. 35.🧺 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) turmeric powder
36. 36.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
37. 37.True or false: the balloon goes forward. (a) True (b) False
38. 38.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a long string (d) a drinking straw
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) two chairs (c) a drinking straw (d) a long string

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