Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 328 · 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: a battery cell is needed for the balloon rocket. (a) True (b) False
2. 2.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
3. 3.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) water a swimmer pushes (d) the balloon
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) the slope of the string (d) distance it travels
5. 5.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
6. 6.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a long string (d) vinegar
8. 8.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
10. 10.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
11. 11.True or false: gas from the rocket goes backward. (a) False (b) True
12. 12.⚖️ 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 same tape
13. 13.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
14. 14.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) yeast
16. 16.🔮 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
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
18. 18.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) when it gets cold (d) it never stops
19. 19.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the rowing boat (d) the swimmer
20. 20.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a drinking straw (d) a mirror
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
23. 23.True or false: gas from the rocket goes forward. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a mirror (d) yeast
27. 27.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a sundial (d) a fridge magnet
29. 29.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) backward (d) straight down
31. 31.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
33. 33.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) a mirror (d) a balloon
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
35. 35.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) turmeric powder (d) a long string
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
39. 39.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
40. 40.True or false: the swimmer goes backward. (a) True (b) False

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