Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 604 · 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.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
2. 2.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
4. 4.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
5. 5.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it holds water (d) it blows air in
6. 6.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when the air runs out (d) when it turns blue
7. 7.True or false: air from the balloon goes forward. (a) False (b) True
8. 8.⚖️ 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 change it (c) we keep it the same
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a drinking straw (d) a mirror
10. 10.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
12. 12.True or false: the balloon goes backward. (a) False (b) True
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
16. 16.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) yeast (d) vinegar
18. 18.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) two chairs (d) a long string
20. 20.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
21. 21.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
25. 25.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
26. 26.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
27. 27.True or false: the rowing boat goes forward. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same straw (c) how big we blow it (d) the slope of the string
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
30. 30.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) sticky tape (d) a battery cell
32. 32.🛟 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
33. 33.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
34. 34.True or false: the swimmer goes forward. (a) False (b) True
35. 35.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
36. 36.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a battery cell (d) a long string
38. 38.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rocket (d) water a swimmer pushes
39. 39.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it

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