5th Grade Science Project Ideas with Hypothesis

Science projects are a wonderful way for 5th graders to explore, learn, and understand different concepts in science. A hypothesis is a guess or prediction that students make before starting their experiments. It helps them learn how to think like scientists.

In this blog, we have listed 75 fun and easy 5th grade science project ideas with hypothesis, each including a simple hypothesis. These projects cover a range of interesting topics, from plants and weather to chemistry and physics. These ideas can inspire young students to choose an exciting project and begin experimenting. Let’s dive into these project ideas and start learning while having fun!

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75 5th Grade Science Project Ideas with Hypothesis

1. Does the color of light affect plant growth?
2. What type of liquid makes plants grow faster?
3. Does temperature affect the strength of a magnet?
4. Do plants grow faster in soil or water?
5. Which paper towel brand absorbs the most water?
6. Does salt affect the freezing point of water?
7. Do different liquids cause metal to rust faster?
8. Does music affect plant growth?
9. Which type of soil holds water the longest?
10. Does the shape of a parachute affect how fast it falls?
11. Can you make a plant grow faster by talking to it?
12. Do plants grow better with natural or artificial light?
13. Does the size of a boat affect how much weight it can carry?
14. Which fruit has the most vitamin C?
15. Does temperature affect how quickly a candle burns?
16. Do magnets work better in cold temperatures?
17. Does sugar make flowers last longer in a vase?
18. Do different surfaces affect how far a toy car rolls?
19. Can saltwater be used to clean pennies?
20. Do different colors of light affect how quickly ice melts?
21. Does the temperature of water affect how fast sugar dissolves?
22. Does the amount of baking soda affect the size of a volcano eruption?
23. Which type of bread molds the fastest?
24. Does adding soap to water affect how high a balloon can fly?
25. Do different types of soda cause different levels of rust?
26. Does temperature affect how fast a bouncy ball bounces?
27. Does salt affect the boiling point of water?
28. Do different liquids evaporate at different rates?
29. Does the type of liquid affect the growth of mold on bread?
30. Does freezing affect the taste of different juices?
31. Do different temperatures affect how quickly paint dries?
32. Does adding vinegar affect how well baking soda fizzes?
33. Which fabric is best for blocking sunlight?
34. Does sugar make yeast produce more gas?
35. Does the shape of an ice cube affect how fast it melts?
36. Does temperature affect how quickly food coloring spreads in water?
37. Do different types of soap make more bubbles?
38. Does the type of liquid affect how long it takes for a flower to change color?
39. Does the thickness of a rubber band affect how far it can stretch?
40. Do seeds grow faster in cotton or soil?
41. Does the amount of sunlight affect how much a plant grows?
42. Do different liquids affect the growth of plants differently?
43. Can plants grow without soil?
44. Does the temperature of water affect how quickly ice melts?
45. Does adding sugar to water affect how much plants grow?
46. Does the weight of an object affect how fast it sinks in water?
47. Does the size of a balloon affect how much air it can hold?
48. Do different types of music affect how fast people complete a task?
49. Does the type of material affect how quickly heat passes through?
50. Does the height from which you drop a ball affect how high it bounces?
51. Does the amount of baking soda affect the amount of gas produced?
52. Does the size of a paper airplane affect how far it flies?
53. Does the type of liquid affect how quickly it freezes?
54. Does adding salt to ice affect how long it takes to melt?
55. Does the amount of air in a balloon affect how high it flies?
56. Does the type of surface affect how high a basketball bounces?
57. Do plants grow better with rainwater or tap water?
58. Does the shape of a bridge affect its strength?
59. Do different types of sugar affect the growth of yeast differently?
60. Does the type of paper affect how far a paper plane flies?
61. Do different colors of light affect plant growth?
62. Does adding lemon juice to water affect its freezing point?
63. Does the size of a seed affect how fast it grows?
64. Does adding oil to water affect how long it takes to boil?
65. Does temperature affect how fast bread rises?
66. Does the shape of a container affect how quickly ice melts?
67. Does the amount of sugar in water affect how high a balloon floats?
68. Does the type of plant affect how much oxygen it produces?
69. Do different types of plastic break down at different rates?
70. Does the amount of baking powder affect how fluffy a cake gets?
71. Does adding salt to water affect how much it bubbles when boiling?
72. Does the shape of a bottle affect how long it takes for water to pour out?
73. Does temperature affect how fast a balloon deflates?
74. Do different types of leaves change color at different rates?
75. Does adding food coloring to water affect how quickly it freezes?

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Conclusion

Science projects are an amazing way for 5th graders to learn about the world while having fun. Each project begins with a hypothesis, which makes students think and guess what might happen. The ideas listed in this blog are simple and interesting, covering many science topics like plants, liquids, and temperature. These projects will help students understand important scientific concepts and develop their problem-solving skills.

Choose a project that excites you, make a hypothesis, and have fun exploring and experimenting. Science is all about curiosity, and these projects will spark that curiosity!