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Floating and Sinking

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This is a presentation for our science topic 'Floating and Sinking' - ENJOY!

This is a presentation for our science topic 'Floating and Sinking' - ENJOY!

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  • Transcript

    • 1. FLOATING AND SINKING
    • 2. FLOATING AND SINKING Presented by:Melenia Kaitaeifo
    • 3. Definition of floating & sinking
    • 4. Definition of floating & sinking
    • 5. Definition of floating & sinking Floating is when an object is on the water
    • 6. Definition of floating & sinking Floating is when an object is on the water Sinking is when the whole object is below the surface
    • 7. QUESTIONS!!!!
    • 8. QUESTIONS!!!! Why do objects float?
    • 9. QUESTIONS!!!! Why do objects float? Why does the material of an object matter with floating and sinking?
    • 10. QUESTIONS!!!! Why do objects float? Why does the material of an object matter with floating and sinking? Why do wooden made boats float?
    • 11. WHAT OBJECTS FLOAT/SINK ?
    • 12. WHAT OBJECTS FLOAT/SINK ? Objects that float
    • 13. WHAT OBJECTS FLOAT/SINK ? Objects that float polystyrene ball
    • 14. WHAT OBJECTS FLOAT/SINK ? Objects that float polystyrene ball leaf
    • 15. WHAT OBJECTS FLOAT/SINK ? Objects that float polystyrene ball leaf ice-block stick
    • 16. WHAT OBJECTS FLOAT/SINK ? Objects that float polystyrene ball leaf ice-block stick plastic rod
    • 17. WHAT OBJECTS FLOAT/SINK ? Objects that sink Objects that float polystyrene ball leaf ice-block stick plastic rod
    • 18. WHAT OBJECTS FLOAT/SINK ? Objects that sink Objects that float blue tack polystyrene ball leaf ice-block stick plastic rod
    • 19. WHAT OBJECTS FLOAT/SINK ? Objects that sink Objects that float blue tack polystyrene ball cotton ball leaf ice-block stick plastic rod
    • 20. WHAT OBJECTS FLOAT/SINK ? Objects that sink Objects that float blue tack polystyrene ball cotton ball leaf blue fabric ice-block stick plastic rod
    • 21. WHAT OBJECTS FLOAT/SINK ? Objects that sink Objects that float blue tack polystyrene ball cotton ball leaf blue fabric ice-block stick safety pin plastic rod
    • 22. WHAT OBJECTS FLOAT/SINK ? Objects that sink Objects that float blue tack polystyrene ball cotton ball leaf blue fabric ice-block stick safety pin plastic rod crayon
    • 23. WHAT MAKES AN OBJECT FLOAT?
    • 24. WHAT MAKES AN OBJECT FLOAT? Question?: Does the weight of the object make things float/sink?
    • 25. WHAT MAKES AN OBJECT FLOAT? Question?: Does the weight of the object make things float/sink? Hypothesis: I think that the density of the object will make it either float/sink
    • 26. WHAT MAKES AN OBJECT FLOAT? Question?: Does the weight of the object make things float/sink? Hypothesis: I think that the density of the object will make it either float/sink Equipment: Rolling pin,Wooden spoon,ice-block stick,Candle (3 sizes),& water
    • 27. WHAT MAKES AN OBJECT FLOAT? Question?: Does the weight of the object make things float/sink? Hypothesis: I think that the density of the object will make it either float/sink Equipment: Rolling pin,Wooden spoon,ice-block stick,Candle (3 sizes),& water Method: Put an object in 1 by 1, leave it for a few mins
    • 28. WHAT MAKES AN OBJECT FLOAT? Question?: Does the weight of the object make things float/sink? Hypothesis: I think that the density of the object will make it either float/sink Equipment: Rolling pin,Wooden spoon,ice-block stick,Candle (3 sizes),& water Method: Put an object in 1 by 1, leave it for a few mins Results: Wood: All the sizes of wood floated. Candle:All the sizes of candles also floated
    • 29. WHAT MAKES AN OBJECT FLOAT? Question?: Does the weight of the object make things float/sink? Hypothesis: I think that the density of the object will make it either float/sink Equipment: Rolling pin,Wooden spoon,ice-block stick,Candle (3 sizes),& water Method: Put an object in 1 by 1, leave it for a few mins Results: Wood: All the sizes of wood floated. Candle:All the sizes of candles also floated Conclusion:Things can float/sink, not only by the weight, but also by the material.
    • 30. What else helps things to float?
    • 31. What else helps things to float? Density:How tightly the atoms in the object are packed
    • 32. What else helps things to float? Density:How tightly the atoms in the object are packed eg. If an object has low density, it will float
    • 33. What else helps things to float? Density:How tightly the atoms in the object are packed eg. If an object has low density, it will float
    • 34. What else helps things to float? Density:How tightly the atoms in the object are packed eg. If an object has low density, it will float Trapped Air: If you put an empty bottle in water with its lid on, it will float because of the trapped air
    • 35. What else helps things to float? Density:How tightly the atoms in the object are packed eg. If an object has low density, it will float Trapped Air: If you put an empty bottle in water with its lid on, it will float because of the trapped air
    • 36. What else helps things to float? Density:How tightly the atoms in the object are packed eg. If an object has low density, it will float Trapped Air: If you put an empty bottle in water with its lid on, it will float because of the trapped air Upthrust: Is a force that pushes things up
    • 37. What else helps things to float? Density:How tightly the atoms in the object are packed eg. If an object has low density, it will float Trapped Air: If you put an empty bottle in water with its lid on, it will float because of the trapped air Upthrust: Is a force that pushes things up eg. When you push a floating object the upthrust force fights back
    • 38. Can changing an objects shape to increase its volume make it float?
    • 39. Can changing an objects shape to increase its volume make it float?
    • 40. Can changing an objects shape to increase its volume make it float? Yes! because it holds air and upthrust has more space to push the object
    • 41. Where does the water go?
    • 42. Where does the water go?
    • 43. Where does the water go? The size of the object displaces the water. The water rises the same amount of space the object took. This is displacement.
    • 44. CREDITS
    • 45. CREDITS Thanks a lot Mrs Will and Mrs Gould for this fun floating and sinking slide show
    • 46. CREDITS Thanks a lot Mrs Will and Mrs Gould for this fun floating and sinking slide show Thanks to Terence, Tyler and Keynote for helping me
    • 47. CREDITS Thanks a lot Mrs Will and Mrs Gould for this fun floating and Thanks for being my audience!!! sinking slide show Thanks to Terence, Tyler and Keynote for helping me
    • 48. CREDITS Thanks a lot Mrs Will and Mrs Gould for this fun floating and Thanks for being my audience!!! sinking slide show By: Melenia Kaitaeifo Thanks to Terence, Tyler and Keynote for helping me