1. That floating feeling 4a) Copy and complete the table below. b) Which two materials could be the same? Explain your answer. 7Kb MaterialMass (g)Volume (cm 3 )Density (g/cm 3 )Float or sink? W4010 X50100 Y8020 Z200250

2. That floating feeling 5 Why do you think that pregnant women often find it easier to exercise in a swimming pool? 6 Suggest how Archimedes might have measured the volume of the crown. 7 Steel is denser than water, so how can a steel ship float? (Hint: think about what is inside the ship). 7Kb

3. That floating feeling 4 a) Copy and complete the table below. 7Kb MaterialMass (g)Volume (cm 3 )Density (g/cm 3 )Float or sink? W40104sink X501000.5float Y80204sink Z2002500.8float b) Which two materials could be the same? Explain your answer. W and Y, they have the same density

4. That floating feeling 5 Why do you think that pregnant women often find it easier to exercise in a swimming pool? The upthrust means their baby does not feel so heavy. 6 Suggest how Archimedes might have measured the volume of the crown. He could have measured the volume of water displaced by the crown. 7Kb

5. That floating feeling 7 Steel is denser than water, so how can a steel ship float? (Hint: think about what is inside the ship.) The ship includes air spaces, so the overall density of the ship and the air inside it is less than the density of sea water. 7Kb