Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 77 · 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.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) gas from the rocket (d) the rocket
2. 2.True or false: water from the oars goes forward. (a) True (b) False
3. 3.True or false: the rowing boat goes backward. (a) False (b) True
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) vinegar (d) a drinking straw
5. 5.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rocket (d) gas from the rocket
6. 6.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a magnet (d) a balloon
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a drinking straw (d) a magnet
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) yeast (d) two chairs
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two chairs (d) a mirror
11. 11.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
12. 12.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) air from the balloon (d) the swimmer
13. 13.⚖️ 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
14. 14.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
16. 16.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
17. 17.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
18. 18.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
19. 19.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the rowing boat
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
22. 22.⚖️ 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
23. 23.🔮 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
24. 24.⚖️ 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
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
26. 26.🎈 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
27. 27.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
29. 29.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
30. 30.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) two chairs (d) turmeric powder
31. 31.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
32. 32.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) distance it travels (d) how big we blow it
34. 34.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
35. 35.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
36. 36.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a battery cell (d) vinegar
37. 37.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
38. 38.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
39. 39.True or false: water a swimmer pushes goes forward. (a) True (b) False
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) yeast (d) vinegar

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