Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 235 · 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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a drinking straw (c) a long string (d) a balloon
3. 3.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) yeast (d) two chairs
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
5. 5.True or false: the rowing boat goes backward. (a) False (b) True
6. 6.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
7. 7.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
8. 8.⚖️ 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 measure it (c) we change it
9. 9.⚖️ 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
10. 10.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) give them to a baby (d) chew them
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a long string (d) yeast
12. 12.True or false: air from the balloon goes backward. (a) False (b) True
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
14. 14.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) air from the balloon (d) water a swimmer pushes
15. 15.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a long string (d) vinegar
17. 17.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the rowing boat (d) the balloon
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
19. 19.True or false: water from the oars goes backward. (a) False (b) True
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same tape (c) distance it travels (d) how big we blow it
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
22. 22.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the balloon
23. 23.⚖️ 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
24. 24.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a sundial (d) a mirror
25. 25.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
26. 26.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) escaping air pushes it (d) a magnet pulls it
27. 27.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
28. 28.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
30. 30.⚖️ 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
31. 31.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) a long string (d) a drinking straw
33. 33.⚖️ 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
34. 34.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the swimmer (c) air from the balloon (d) gas from the rocket
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a balloon (c) a magnet (d) turmeric powder
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) a mirror (d) vinegar
37. 37.True or false: the balloon goes forward. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
39. 39.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
40. 40.True or false: water a swimmer pushes goes backward. (a) False (b) True

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