Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 842 · 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.True or false: the rocket goes forward. (a) False (b) True
2. 2.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
3. 3.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) water from the oars (d) gas from the rocket
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
5. 5.🛟 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
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) yeast (d) a long string
7. 7.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
9. 9.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) sticky tape (d) two chairs
11. 11.⚖️ 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 change it (c) we measure it
12. 12.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
13. 13.🛟 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
14. 14.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
15. 15.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a balloon (d) a battery cell
18. 18.True or false: water from the oars goes forward. (a) True (b) False
19. 19.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) yeast
21. 21.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) water a swimmer pushes (d) the swimmer
22. 22.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
24. 24.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
25. 25.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same string
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a drinking straw (c) sticky tape (d) a balloon
28. 28.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
29. 29.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
30. 30.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
31. 31.True or false: water a swimmer pushes goes forward. (a) False (b) True
32. 32.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the rowing boat (d) water from the oars
33. 33.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: air from the balloon goes backward. (a) False (b) True
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
38. 38.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) yeast (d) sticky tape
39. 39.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
40. 40.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward

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