Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 477 · 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 turmeric powder for the balloon rocket? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a battery cell (d) a drinking straw
3. 3.True or false: a long string is needed for the balloon rocket. (a) True (b) False
4. 4.True or false: air from the balloon goes backward. (a) True (b) False
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a balloon (d) two chairs
6. 6.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) keep them in your mouth (d) give them to a baby
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
9. 9.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) turmeric powder (d) a magnet
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
12. 12.⚖️ 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 string (d) distance it travels
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) two chairs (d) a drinking straw
14. 14.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the balloon (d) the rocket
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) a balloon (d) a long string
16. 16.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
17. 17.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
18. 18.True or false: the rowing boat goes backward. (a) False (b) True
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
20. 20.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
22. 22.⚖️ 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
23. 23.True or false: the rocket goes backward. (a) True (b) False
24. 24.🛟 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
25. 25.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
26. 26.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
29. 29.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) air from the balloon (d) the balloon
30. 30.📘 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
31. 31.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
32. 32.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) water a swimmer pushes (d) the balloon
33. 33.True or false: air from the balloon goes forward. (a) True (b) False
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) vinegar (d) a long string
35. 35.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
36. 36.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
37. 37.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) water a swimmer pushes (d) gas from the rocket
38. 38.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a long string (d) sticky tape
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False

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