This set includes 22 images as shown on preview pages, 21 color images and 1 black line version. Images saved at 300 dpi in png files.Check out these related clipart sets:States of MatterPhysical Properties of MatterChemical Properties of MatterMixtures and Solutions ClipartForce and Motion Clip ArtScience Lab Tools Clip ArtMelting in the SunWhat Melts in the Sun? - Cups ExperimentWater CycleI also have quite a complete selection of clipart in the following bundles:Forms of Energy Mega Bundle.Ef