Sink or Float Quiz

What determines whether an object will sink or float in water?

• The temperature of the water

• The color of the object

• The density of the object

• The shape of the object

What happens to rocks when placed in water?

• They change color

• They float on the surface

• They sink to the bottom

• They dissolve

Why do plastic balls filled with air float on water?

• They have a rough surface

• They are made of metal

• They are heavier than water

• They are less dense than water

What is the behavior of marbles when placed in water?

• They dissolve

• They sink to the bottom

• They float on the surface

• They bounce on the surface

What happens to wooden blocks in water?

• They change color

• They float on the surface

• They sink to the bottom

• They dissolve

Why do pine cones float on water?

• They are less dense than water

• They have a smooth surface

• They are made of metal

• They are denser than water

What is the behavior of metal cars in water?

• They dissolve

• They sink to the bottom

• They float on the surface

• They bounce on the surface

Why does a bottle of glue initially sink and then float?

• It is heavier than water

• It is less dense than water

• It contains air

• It is made of metal

What happens to rubber duckies in water?

• They sink to the bottom

• They float on the surface

• They dissolve

• They change color

What is observed when glitter is stirred in water?

• It all floats on the surface

• It dissolves completely

• It both floats and sinks

• It all sinks to the bottom