Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 156 · 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 a long string for the balloon rocket? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a long string (d) a battery cell
3. 3.True or false: air from the balloon goes backward. (a) False (b) True
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) a battery cell
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) water a swimmer pushes
7. 7.🚀 Which of these goes backward? (a) the rocket (b) gas from the rocket (c) the swimmer (d) the balloon
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) two chairs (d) a balloon
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) a magnet (d) vinegar
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
13. 13.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
14. 14.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) air from the balloon (d) the swimmer
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a drinking straw (d) two chairs
16. 16.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) when it gets cold (d) it never stops
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
18. 18.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
19. 19.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
20. 20.True or false: water a swimmer pushes goes forward. (a) True (b) False
21. 21.⚖️ 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
22. 22.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
25. 25.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
26. 26.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
27. 27.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the balloon
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
29. 29.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
30. 30.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a mirror (c) turmeric powder (d) a magnet
31. 31.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
33. 33.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
34. 34.⚖️ 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 string (c) distance it travels
35. 35.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a mirror (d) sticky tape
37. 37.🛟 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
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) yeast (d) a long string
40. 40.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the rocket (d) air from the balloon

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