Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 60 · 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) turmeric powder (c) a battery cell (d) two chairs
2. 2.True or false: the rowing boat goes forward. (a) False (b) True
3. 3.True or false: air from the balloon goes backward. (a) False (b) True
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
5. 5.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
6. 6.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
8. 8.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) vinegar (d) a long string
10. 10.🎈 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
11. 11.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) a balloon (d) a magnet
12. 12.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
13. 13.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
14. 14.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it guides the balloon (d) it holds water
15. 15.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) vinegar (d) sticky tape
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
18. 18.⚖️ 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
19. 19.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) a drinking straw (d) a balloon
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.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
23. 23.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
24. 24.🚀 Which of these goes backward? (a) the balloon (b) air from the balloon (c) the rocket (d) the swimmer
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) two chairs (c) a balloon (d) a long string
26. 26.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) two chairs (d) sticky tape
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
29. 29.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) turmeric powder (d) a battery cell
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
32. 32.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) a mirror (d) vinegar
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) turmeric powder (d) a drinking straw
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
36. 36.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) sticky tape (d) a long string
38. 38.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) air from the balloon (d) gas from the rocket
39. 39.⚖️ 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
40. 40.True or false: a balloon is needed for the balloon rocket. (a) True (b) False

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