Students will be able to make measurements showing that whether the process is a change of state, dissolving, or a chemical reaction, the total mass of the substances does not change. Note: In the ...

We are also using “heavy”, “light”, and “weight” instead of “mass ... lesson. NGSS 5-PS1-3: Make observations and measurements to identify materials based on their properties. Note: The NGSS Structure ...

Never mind the fishy smell at Oakestown Intermediate; it just means fifth-graders are getting an up-close lesson on anatomy ...