Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 797 · 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.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a battery cell (d) a drinking straw
2. 2.⚖️ 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
3. 3.📘 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
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 slope of the string (c) the same string (d) how big we blow it
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a mirror (d) a long string
6. 6.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
7. 7.⚖️ 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
8. 8.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) two chairs (c) sticky tape (d) a drinking straw
11. 11.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) gas from the rocket
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
13. 13.🧺 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) a mirror
14. 14.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
15. 15.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
16. 16.True or false: air from the balloon goes forward. (a) False (b) True
17. 17.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
18. 18.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
19. 19.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
20. 20.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
23. 23.True or false: the swimmer goes backward. (a) True (b) False
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a balloon (c) two chairs (d) a long string
26. 26.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the swimmer (d) the balloon
27. 27.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
28. 28.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
29. 29.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a battery cell (d) a drinking straw
31. 31.True or false: water a swimmer pushes goes forward. (a) False (b) True
32. 32.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
33. 33.True or false: the balloon goes backward. (a) True (b) False
34. 34.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) yeast (c) a mirror (d) turmeric powder
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) yeast (d) two chairs
37. 37.True or false: the rocket goes backward. (a) True (b) False
38. 38.⚖️ 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
39. 39.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
40. 40.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False

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