Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 393 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) the slope of the string (d) distance it travels
2. 2.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
3. 3.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
4. 4.🎈 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
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a magnet (d) two chairs
8. 8.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
9. 9.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
10. 10.True or false: water from the oars goes forward. (a) False (b) True
11. 11.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
13. 13.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water a swimmer pushes
14. 14.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) water from the oars (d) the balloon
15. 15.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
16. 16.📘 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
17. 17.⚖️ 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
18. 18.🛟 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
19. 19.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water from the oars (d) the swimmer
20. 20.True or false: water a swimmer pushes goes backward. (a) False (b) True
21. 21.🛟 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
22. 22.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
23. 23.True or false: the balloon goes forward. (a) False (b) True
24. 24.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
25. 25.⚖️ 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
26. 26.⚖️ 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 keep it the same (c) we measure it
27. 27.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
28. 28.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
31. 31.🧺 Do we need vinegar 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) sticky tape (c) a balloon (d) turmeric powder
33. 33.True or false: air from the balloon goes backward. (a) True (b) False
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) a long string (d) two chairs
35. 35.⚖️ 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) distance it travels (c) how big we blow it (d) the same straw
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a drinking straw (c) a balloon (d) a long string
37. 37.⚖️ 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 string
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
40. 40.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed

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