While washing some berries a student observes that the blueberries sink in water and the strawberries float in water. 1. Which statement explains this observation? A Astrawberry has less weight than a blueberry.
B. A blueberry has greater volume than a strawberry.
C. A strawberry has more mass than a blueberry
D. A blueberry has greater density than a strawberry.
2. Explain:
3. Compare the density of water to the density of blueberries:
4 Compare the density of waterto the density of strawberries:

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.