Balloon Rocket STEM Worksheet

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

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