Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 115 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a long string (d) a balloon
2. 2.True or false: the rocket goes forward. (a) False (b) True
3. 3.🚀 Which of these goes backward? (a) the balloon (b) air from the balloon (c) the rowing boat (d) the rocket
4. 4.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
5. 5.⚖️ 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
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 tape (c) distance it travels (d) how big we blow it
7. 7.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
8. 8.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
9. 9.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
10. 10.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
11. 11.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the rocket (d) air from the balloon
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
13. 13.🛟 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
14. 14.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
15. 15.⚖️ 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 change it (c) we measure it
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
17. 17.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
18. 18.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) two chairs (d) a magnet
20. 20.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a long string (d) two chairs
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a battery cell (d) two chairs
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) sticky tape (d) a balloon
26. 26.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a balloon (d) two chairs
28. 28.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
29. 29.True or false: yeast is needed for the balloon rocket. (a) False (b) True
30. 30.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rowing boat (d) water from the oars
31. 31.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
33. 33.True or false: the swimmer goes backward. (a) True (b) False
34. 34.🎈 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
35. 35.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
37. 37.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the rowing boat (d) the swimmer
38. 38.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
39. 39.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror

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