Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 479 · 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.🛟 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
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
3. 3.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
4. 4.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
5. 5.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rocket (d) gas from the rocket
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) two chairs (d) a balloon
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) yeast (d) a long string
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
9. 9.🚀 Which of these goes backward? (a) the rowing boat (b) water from the oars (c) the balloon (d) the swimmer
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same straw (c) distance it travels (d) the slope of the string
12. 12.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
14. 14.⚖️ 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 keep it the same (c) we change it
15. 15.⚖️ 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
16. 16.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
17. 17.True or false: water a swimmer pushes goes backward. (a) False (b) True
18. 18.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the balloon (d) gas from the rocket
19. 19.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a mirror (d) yeast
22. 22.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it holds water (d) it makes it heavier
23. 23.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
24. 24.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) sticky tape (d) a battery cell
26. 26.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
27. 27.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
30. 30.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) two chairs (d) vinegar
32. 32.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) a magnet
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
35. 35.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
36. 36.True or false: the rocket goes forward. (a) False (b) True
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a battery cell (d) two chairs
38. 38.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
39. 39.True or false: the rocket goes backward. (a) True (b) False
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a mirror (d) a drinking straw

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