1. Essential Vocabulary: Sum Magnification Mass Matter
Sum of Parts Unit
Essential Vocabulary:
Sum Magnification
Mass Matter

2. What is mass and how do we determine the mass of an object?
We use the word mass to talk about how much matter there is in something.
We weigh objects with various tools to figure out how much mass there is.
The more matter there is, the more something will weigh.

3. What is the difference between weight and mass?
If we are comparing two different things to each other on Earth, they are pulled the same by gravity and so the one with more mass weights more.
In space, where the pull of gravity is very small, something can have almost no weight. It still has matter in it, though, so it still has mass.

4. Does the mass of an object always equal the sum of its parts?
The weight of the whole object is always the same as the sum of the parts.
When an object is broken down into parts, the parts have the same total weight as the original object.
Example: Lego Man Lab

5. How do we know objects are made up of smaller parts if we cannot see them?
Microscope - viewing objects too small to be seen with the human eye
Hand lens - viewing small objects that do not need the microscope

6. “Sum of the Parts” vs “The Whole”
Construct a sculpture using the clay on the table.
Find the mass of the object using a balance scale. Record the mass on the “Sum of Parts Data Sheet.”
Weigh the sculpture in its disassembled state. Record the mass of each part of the sculpture in the table.
Add the mass of the parts of the sculpture and record the results in the table.
Compare and discuss your findings and record them in the table.

7. Conservation of Matter-Insta Snow

8. Conservation of Matter-Popcorn Lab

9. Hollywood Squares - Unit Review
Each team will have 30 seconds to write their answer on the whiteboards and decide what their answer will be. All students should answer on their whiteboards and the answer with the most votes will be the team’s answer.
Each team’s representative is responsible for answering for the team to earn an X or O for the team in the square they choose.
If a team answers the questions correctly they earn an X or O in the square they selected. If they do not answer the question correctly, the other team has 30 seconds to write their answers and vote on their team’s answer.
The team that lines up 3 X’s or O’s in a row wins!22
The instructor will verify correct answers.