Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 743 · 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 the rowing boat go? (a) goes backward (b) goes forward
2. 2.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
3. 3.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) a magnet (d) two chairs
5. 5.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) sticky tape (d) turmeric powder
7. 7.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) the same tape (d) the same string
9. 9.⚖️ 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
10. 10.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
11. 11.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
12. 12.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) water a swimmer pushes (d) gas from the rocket
13. 13.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
15. 15.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the swimmer (d) the rocket
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.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
18. 18.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
19. 19.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
21. 21.True or false: water from the oars goes forward. (a) True (b) False
22. 22.⚖️ 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
23. 23.🔮 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
24. 24.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) a mirror
26. 26.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
27. 27.🛟 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
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) turmeric powder (d) a drinking straw
29. 29.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
30. 30.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
33. 33.⚖️ 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 string (c) distance it travels (d) the slope of the string
34. 34.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
36. 36.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
37. 37.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
38. 38.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
40. 40.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed

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