Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 901 · 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) the same straw (b) the same string (c) distance it travels (d) the same tape
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) vinegar (d) a balloon
3. 3.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
5. 5.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
8. 8.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) a long string (d) two chairs
10. 10.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
11. 11.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) yeast (d) a long string
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
14. 14.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) turmeric powder
16. 16.⚖️ 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) the slope of the string (c) how big we blow it (d) the same tape
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
19. 19.⚖️ 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
20. 20.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
21. 21.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) a magnet pulls it (d) the straw is heavy
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) yeast
23. 23.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial
24. 24.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
25. 25.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
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) distance it travels (c) the slope of the string
27. 27.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
28. 28.🚀 Which of these goes forward? (a) the swimmer (b) water from the oars (c) water a swimmer pushes (d) air from the balloon
29. 29.⚖️ 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
30. 30.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
32. 32.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
33. 33.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the balloon (d) water from the oars
34. 34.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a balloon (d) turmeric powder
36. 36.⚖️ 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
37. 37.True or false: 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) a battery cell (c) two chairs (d) sticky tape
39. 39.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
40. 40.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed

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