Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 388 · 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.🛟 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
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) vinegar (d) turmeric powder
4. 4.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
5. 5.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) two chairs (d) a balloon
7. 7.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
9. 9.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) a balloon (d) a long string
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
12. 12.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
14. 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) forward (d) straight down
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a battery cell (d) two chairs
16. 16.🧺 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
17. 17.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it holds water (d) it makes it heavier
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) a battery cell
20. 20.True or false: gas from the rocket goes backward. (a) True (b) False
21. 21.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) put string round a neck (d) blow it till it bursts
23. 23.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the slope of the string (c) the same tape (d) how big we blow it
25. 25.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) gas from the rocket (d) the swimmer
26. 26.True or false: the rocket goes forward. (a) False (b) True
27. 27.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
29. 29.⚖️ 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) True (b) False
30. 30.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water from the oars
31. 31.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes much farther (d) it goes less far
32. 32.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) vinegar
36. 36.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the swimmer (d) water from the oars
37. 37.True or false: the rowing boat goes backward. (a) False (b) True
38. 38.True or false: the swimmer goes forward. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
40. 40.⚖️ 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

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