Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 581 · 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 the one thing we change? (a) distance it travels (b) how big we blow it (c) the same straw (d) the same tape
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rocket (c) gas from the rocket (d) water from the oars
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
5. 5.🚀 Which of these goes backward? (a) water from the oars (b) the swimmer (c) the balloon (d) the rowing boat
6. 6.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) vinegar (d) two chairs
8. 8.True or false: the balloon goes forward. (a) True (b) False
9. 9.🛟 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
10. 10.⚖️ 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
11. 11.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial
14. 14.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) a balloon (d) a mirror
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) yeast (d) sticky tape
16. 16.🔮 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
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a long string (d) a balloon
19. 19.🎈 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
20. 20.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
21. 21.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
22. 22.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two chairs (d) a long string
25. 25.True or false: the rocket goes forward. (a) True (b) False
26. 26.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
27. 27.True or false: the balloon goes backward. (a) False (b) True
28. 28.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
29. 29.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the balloon
30. 30.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
31. 31.True or false: gas from the rocket goes backward. (a) True (b) False
32. 32.⚖️ 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 straw (c) distance it travels (d) the slope of the string
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) a long string (d) a balloon
34. 34.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when the air runs out (d) when it turns blue
35. 35.⚖️ 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
36. 36.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
37. 37.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
38. 38.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
39. 39.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
40. 40.True or false: a long string is not needed for the balloon rocket. (a) True (b) False

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