Science Standards
Building upon knowledge and skills gained in preceding grades,
by the end of Grade 4, students will:
Standard 5.6

(Chemistry) All students will gain an understanding of the structure and behavior of matter.

Standard 5.6.4.A Structure and Properties of Matter
Standard 5.6.4.A.1
Sort materials based on physical characteristics that can be seen by using magnification.
Standard 5.6.4.A.2
Observe that water can be a liquid or a solid and can change from one form to the other and the mass remains the same.
Standard 5.6.4.A.3
Recognize that water, as an example of matter, can exist as a solid, liquid or gas and can be transformed from one state to another by heating or cooling. 
Standard 5.6.4.A.4
Show that not all materials respond the same way to what is done to them.
Standard 5.6.4.B  Chemical Reactions
Standard 5.6.4.B.1

Combine two or more materials and show that the new material may have properties that are different from the original material.