Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 378 · 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.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
2. 2.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the slope of the string (c) the same straw (d) distance it travels
4. 4.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
6. 6.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
7. 7.📘 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
8. 8.True or false: the swimmer goes backward. (a) False (b) True
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🔮 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
11. 11.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
12. 12.⚖️ 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
13. 13.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) gas from the rocket (d) the rocket
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
15. 15.🚀 Which of these goes backward? (a) water from the oars (b) the rowing boat (c) the swimmer (d) the rocket
16. 16.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
17. 17.🎈 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
18. 18.⚖️ 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
19. 19.True or false: water from the oars goes forward. (a) True (b) False
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a drinking straw (d) two chairs
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a drinking straw (d) turmeric powder
22. 22.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the balloon (d) gas from the rocket
23. 23.True or false: air from the balloon goes backward. (a) False (b) True
24. 24.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the swimmer (d) the rowing boat
25. 25.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
26. 26.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
28. 28.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a drinking straw (d) two chairs
34. 34.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
35. 35.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a drinking straw (c) a long string (d) a balloon
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a balloon (c) yeast (d) vinegar
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a battery cell (d) sticky tape
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) the same string (d) the slope of the string

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