Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 367 · 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: yeast is not needed for the balloon rocket. (a) True (b) False
2. 2.🔮 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
3. 3.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) water a swimmer pushes (d) water from the oars
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) two chairs (d) a battery cell
5. 5.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
7. 7.⚖️ 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
8. 8.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) two chairs (d) a mirror
10. 10.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
11. 11.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
12. 12.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it speeds up (d) it goes backward first
14. 14.⚖️ 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
15. 15.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
16. 16.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a drinking straw (d) a balloon
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
21. 21.⚖️ 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
22. 22.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
23. 23.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
24. 24.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rocket (d) air from the balloon
25. 25.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) vinegar (c) two chairs (d) a drinking straw
28. 28.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) water from the oars
31. 31.⚖️ 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
32. 32.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a sundial (d) a mirror
36. 36.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
37. 37.True or false: the balloon goes forward. (a) True (b) False
38. 38.True or false: the rowing boat goes backward. (a) False (b) True
39. 39.True or false: a long string is needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed

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