Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 149 · 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.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) two chairs (c) a battery cell (d) yeast
2. 2.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a balloon (d) a long string
4. 4.⚖️ 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) True (b) False
5. 5.True or false: air from the balloon goes backward. (a) False (b) True
6. 6.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
7. 7.⚖️ 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
8. 8.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) water a swimmer pushes (d) water from the oars
9. 9.True or false: gas from the rocket goes backward. (a) True (b) False
10. 10.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
11. 11.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
13. 13.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
14. 14.🚀 Which of these goes backward? (a) the swimmer (b) water a swimmer pushes (c) the rowing boat (d) the rocket
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) a long string (d) a balloon
17. 17.True or false: the balloon goes forward. (a) False (b) True
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a sundial (d) a fridge magnet
19. 19.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
20. 20.⚖️ 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
21. 21.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) the same string (d) distance it travels
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a balloon (d) yeast
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) a balloon (d) sticky tape
25. 25.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the balloon (d) water a swimmer pushes
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
27. 27.⚖️ 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 measure it (c) we change it
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a long string (d) a drinking straw
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) sticky tape (d) a magnet
31. 31.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
33. 33.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) yeast (d) a mirror
34. 34.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
35. 35.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same string (d) distance it travels
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.True or false: the swimmer goes backward. (a) False (b) True
39. 39.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed

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