Looking at materials.
Name………………………………………….
Date……………………
Air is all around us, it is a ………………
Porous materials contain many ………… When a porous
material is dry, these gaps are filled with ………… When
the material is placed in …………… the air is
……………………… and rises as …………………
when the water is ……………………………
Melting and dissolving are two ways that we can
change the ………………… of materials. Sometimes the
material returns to its original state, but changes can also
be ………………………………
Gaps/pores
Air
Water
Displace
Bubbles
We showed that air has mass.
We looked at porous materials using a microscope.
Examples of melting and dissolving.
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