Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

Sink or float? Your kid may be surprised to learn that the density of coke and diet coke aren't the same!

Have your little chemist think about the properties, or characteristics, of metals. What makes them different than non-metals?

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

Play a fun game that combines the periodic table with a classic concentration game.