Law of Conservation of Mass

​How is mass/weight measured?

Open Ended

If you leave a cup of ice out to melt, will the mass/weight change? Why or why not?

Poll

How will the weight change when the ice melts?

• The weight will increase

• The weight will decrease

• The weight will stay the same

Multiple Choice

A cupcake takes 3 grams of flour, 2 grams of egg, and 6 grams of sugar to make. What is the total weight of the ingredients after mixing?

• 5 grams

• 10 grams

• 11 grams

Multiple Choice

The Law of Conservation of Mass states...

• Matter can be created

• Matter can be destroyed

• Matter cannot be created or destroyed

• Matter can be created or destroyed

Multiple Choice

An Oreo cookie weighs 20 grams. It gets crushed into crumbs for a recipe. How much do its crumbs weigh?

• 15 grams

• 20 grams

• 25 grams

Multiple Choice

A student mixes 100 grams of sugar, 100 grams of water, and 5 grams of food coloring. The solution weighs...

• 200 grams

• 250 grams

• 205 grams