Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 966 · 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: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
2. 2.True or false: the swimmer goes backward. (a) True (b) False
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) turmeric powder (d) a drinking straw
4. 4.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) two chairs (d) sticky tape
6. 6.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it changes colour (d) it gets too heavy
7. 7.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
8. 8.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it makes it heavier (d) it holds water
9. 9.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
10. 10.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) gas from the rocket (d) the rowing boat
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
13. 13.⚖️ 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 straw
14. 14.🚀 Which of these goes backward? (a) the rowing boat (b) water from the oars (c) the swimmer (d) the balloon
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) a balloon (d) a long string
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) a magnet
17. 17.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
18. 18.True or false: water a swimmer pushes goes backward. (a) False (b) True
19. 19.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
20. 20.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
21. 21.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
22. 22.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) a mirror
24. 24.True or false: the rowing boat goes forward. (a) False (b) True
25. 25.⚖️ 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
26. 26.🚀 Which of these goes forward? (a) water from the oars (b) the balloon (c) water a swimmer pushes (d) air from the balloon
27. 27.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
28. 28.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the balloon (d) the rocket
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
30. 30.⚖️ 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) how big we blow it (c) the same string (d) the same straw
31. 31.True or false: a long string is needed for the balloon rocket. (a) True (b) False
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the rowing boat (d) the rocket
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) turmeric powder (d) sticky tape
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
36. 36.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
37. 37.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
38. 38.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
39. 39.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
40. 40.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward

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