Sum of Parts Mass The amount of matter

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Sum of Parts

Sum of Parts

Mass: The amount of matter that makes up an object. Weight: The amount of

Mass: The amount of matter that makes up an object. Weight: The amount of gravitational pull on an object.

Let’s think about it… Earth On Earth we have gravity… So, this ball has

Let’s think about it… Earth On Earth we have gravity… So, this ball has a… Mass: 10 grams Weight: 2 pounds Space In space there is NO gravity… So, this ball has a… Mass: 10 grams Weight: 0 pounds

What about this ball? When there is no gravity… The weight___________ The mass ____________

What about this ball? When there is no gravity… The weight___________ The mass ____________ Gravity Mass: 20 grams Weight: 4 pounds No Gravity Mass: 20 grams Weight: 0 pounds

Let’s think about astronauts On Earth (GRAVITY) Astronaut Neil Armstrong: Mass: 1500 grams Weight:

Let’s think about astronauts On Earth (GRAVITY) Astronaut Neil Armstrong: Mass: 1500 grams Weight: 200 pounds In space (NO GRAVITY) Astronaut: Neil Armstrong 1500 grams Mass: 0 pounds Weight: Why does his mass stay the same, but his weight change?

Look at this house…what are the different parts?

Look at this house…what are the different parts?

Look at this house again… What are the different parts?

Look at this house again… What are the different parts?

Each separate part has a mass… What is the total mass of the door

Each separate part has a mass… What is the total mass of the door and knob? 15 grams Both windows? 20 grams The total house? 70 grams 15 grams 10 grams 20 grams 10 grams 5 grams

The house only has one window… What is the total mass now? 60 grams

The house only has one window… What is the total mass now? 60 grams 15 grams 20 grams 10 grams 5 grams

Let’s try another one… What are the parts of the cheeseburger?

Let’s try another one… What are the parts of the cheeseburger?

What is the total mass of the cheeseburger? 56 grams 12 grams 5 grams

What is the total mass of the cheeseburger? 56 grams 12 grams 5 grams 6 grams 7 grams 10 grams 11 grams

Sarah and Jose are making lemonade. They are using the following ingredients: • •

Sarah and Jose are making lemonade. They are using the following ingredients: • • • Water: 35 grams 4 Lemons: 10 grams each Sugar: 24 grams Ice: 20 grams Pitcher: 50 grams What is the total mass of the lemonade? 169 grams

They decided the lemonade was too sweet, so they added 3 more lemons. Now

They decided the lemonade was too sweet, so they added 3 more lemons. Now what is the total mass? • • • Water: 35 grams 4 Lemons: 10 grams each Sugar: 24 grams Ice: 20 grams Pitcher: 50 grams What is the total mass of the 199 grams

They were thirsty and drank 4 glasses of lemonade. Each glass was 15 grams.

They were thirsty and drank 4 glasses of lemonade. Each glass was 15 grams. How many grams of lemonade are left in the pitcher? 139 grams

Ms. Carter’s class has a recess bag filled with toys. It includes… • •

Ms. Carter’s class has a recess bag filled with toys. It includes… • • • Soccer Ball: 24 grams Basketball: 40 grams Frisbee: 12 grams Football: 32 grams Bag: 10 grams What is the total mass of the recess bag? 118 grams

Sadly, the football got lost. • • • Soccer Ball: 24 grams Basketball: 40

Sadly, the football got lost. • • • Soccer Ball: 24 grams Basketball: 40 grams Frisbee: 12 grams Football: 32 grams Bag: 10 grams What is the NEW total mass of the recess bag? 86 grams

Jennifer is hungry, so she decides to make a sandwich: • • • 2

Jennifer is hungry, so she decides to make a sandwich: • • • 2 slices of bread: 15 grams each 1 slice of cheese: 12 grams Turkey: 22 grams 2 tomatoes: 10 grams each 1 piece of lettuce: 7 grams What is the total mass of the sandwich? 91 grams

Jennifer ate four bites of this sandwich. Each bite was 6 grams. How much

Jennifer ate four bites of this sandwich. Each bite was 6 grams. How much of her sandwich was left? 67 grams

What is the total mass of this block tower? 25 grams The tower collapsed.

What is the total mass of this block tower? 25 grams The tower collapsed. In pieces, what is the total mass of this block tower? Still 25 grams am 5 grams s 5 gram 5 gr ams 5 grams s s ram g 5

Molly stirs 20 grams of salt into 60 grams of water. What will happen

Molly stirs 20 grams of salt into 60 grams of water. What will happen to the mass of the water as the salt is added? The mass will increase to 80 grams

Mark made a batch of brownies. The entire pan of brownies has a mass

Mark made a batch of brownies. The entire pan of brownies has a mass of 350 grams. He cut the brownies into 14 equal pieces. What is the mass of each brownie? 25 grams

Maria decided to build a tower using 20 blocks. Each block has a mass

Maria decided to build a tower using 20 blocks. Each block has a mass of 7 grams. What is the total mass of her tower? 140 grams

Does the mass of an object equal the sum of its parts? YES!

Does the mass of an object equal the sum of its parts? YES!