Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 912 · 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 water from the oars go? (a) goes forward (b) goes backward
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) vinegar
3. 3.🛟 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
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same tape (c) how big we blow it (d) the slope of the string
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same string (c) distance it travels (d) how big we blow it
7. 7.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a drinking straw (c) sticky tape (d) a long string
10. 10.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
11. 11.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) less friction (d) it goes faster
12. 12.⚖️ 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
13. 13.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a balloon (d) a drinking straw
15. 15.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water from the oars (d) the rowing boat
16. 16.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
17. 17.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) two chairs (d) vinegar
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) turmeric powder
20. 20.⚖️ 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 measure it (c) we change it
21. 21.⚖️ 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 measure it (c) we change it
22. 22.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) sticky tape (d) a mirror
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a magnet (c) a long string (d) sticky tape
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
26. 26.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
27. 27.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) two chairs (d) turmeric powder
28. 28.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the rocket (d) air from the balloon
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
30. 30.True or false: yeast is needed for the balloon rocket. (a) False (b) True
31. 31.⚖️ 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 slope of the string (c) distance it travels
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a balloon (d) a long string
33. 33.True or false: the rocket goes forward. (a) True (b) False
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
35. 35.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
36. 36.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
39. 39.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
40. 40.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby

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