Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 820 · 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.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a long string (d) yeast
4. 4.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the swimmer (d) the rocket
5. 5.True or false: the rocket goes backward. (a) True (b) False
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a long string (c) a balloon (d) two chairs
7. 7.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
8. 8.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the rowing boat (d) the rocket
9. 9.True or false: the balloon goes forward. (a) False (b) True
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) how big we blow it (d) the same straw
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a magnet (d) two chairs
14. 14.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
16. 16.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
17. 17.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) sticky tape (d) a drinking straw
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a balloon (c) a drinking straw (d) sticky tape
22. 22.True or false: water from the oars goes backward. (a) False (b) True
23. 23.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
24. 24.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
25. 25.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
26. 26.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same straw (c) distance it travels
28. 28.True or false: water a swimmer pushes goes backward. (a) True (b) False
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) how big we blow it (c) distance it travels (d) the same tape
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
31. 31.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.⚖️ 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 measure it (c) we keep it the same
34. 34.True or false: water from the oars goes forward. (a) True (b) False
35. 35.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
36. 36.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a battery cell (d) a magnet
37. 37.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
38. 38.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a drinking straw (d) a balloon
40. 40.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) air from the balloon (d) water from the oars

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