Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 145 · 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.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) yeast (c) a battery cell (d) a magnet
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.🎈 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
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) a long string
11. 11.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a long string (d) yeast
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.True or false: the rowing boat goes backward. (a) True (b) False
15. 15.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a sundial (d) a fridge magnet
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) yeast (d) a balloon
19. 19.True or false: water a swimmer pushes goes forward. (a) False (b) True
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
22. 22.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
23. 23.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
24. 24.⚖️ 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) the same tape (d) the same string
25. 25.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
27. 27.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
28. 28.🚀 Which of these goes forward? (a) the swimmer (b) water from the oars (c) water a swimmer pushes (d) gas from the rocket
29. 29.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
30. 30.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) vinegar (d) sticky tape
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the balloon (d) gas from the rocket
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) a mirror
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) a drinking straw (d) two chairs
36. 36.⚖️ 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
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
38. 38.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a balloon (d) turmeric powder
39. 39.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
40. 40.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids