Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 595 · 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 measure it (b) we change it (c) we keep it the same
2. 2.⚖️ 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
3. 3.True or false: the rowing boat goes backward. (a) True (b) False
4. 4.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
6. 6.🛟 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
7. 7.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
8. 8.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🚀 Which of these goes backward? (a) water from the oars (b) the rowing boat (c) the swimmer (d) the balloon
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a long string (d) a balloon
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) how big we blow it (d) the same string
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two chairs (d) a long string
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) vinegar (d) sticky tape
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
18. 18.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
22. 22.⚖️ 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
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) sticky tape (d) two chairs
25. 25.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) a battery cell (d) yeast
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
29. 29.True or false: gas from the rocket goes forward. (a) False (b) True
30. 30.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) how big we blow it (d) distance it travels
33. 33.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water from the oars (d) the rowing boat
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) two chairs (d) a long string
35. 35.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
36. 36.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
39. 39.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
40. 40.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True

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