Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 371 · 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.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
2. 2.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
3. 3.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
6. 6.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
7. 7.True or false: air from the balloon goes forward. (a) True (b) False
8. 8.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a long string (d) a magnet
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same straw (c) the same string (d) how big we blow it
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
13. 13.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) yeast (d) a mirror
15. 15.⚖️ 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 string (c) distance it travels (d) the same straw
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a battery cell (d) a long string
17. 17.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
18. 18.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the rowing boat
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a mirror (d) a drinking straw
20. 20.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) sticky tape (d) a mirror
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
22. 22.True or false: the rocket goes backward. (a) False (b) True
23. 23.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the swimmer
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
25. 25.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
26. 26.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
27. 27.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
28. 28.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same tape
31. 31.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) vinegar (c) sticky tape (d) a long string
33. 33.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
34. 34.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
35. 35.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a mirror (d) sticky tape
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a long string (c) two chairs (d) sticky tape
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
40. 40.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces

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