Law of Conservation of Mass

Sherry buys a 5-ounce cup of ice cream. The summer heat melts the ice cream before she can eat any. Which best describes the weight of the melted ice cream?

• 2.5 ounces

• 5 ounces

• 10 ounces

• 15 ounces

Max adds 250 g of water and 250 g of rice to a pot on a stove and covers the pot with a lid. As the water boils, it gets absorbed by the rice. How much do the contents of the pot weigh after the rice finishes cooking?

• 250 g

• 400 g

• 500 g

• 600 g

Maria fills a bowl with 200 g of water. She puts the bowl of water in the freezer, and the water freezes. Which will most likely be the mass of the frozen water?

• 50 g

• 100 g

• 200 g

• 400 g

A student mixes 125 grams of sugar, 250 grams of water and 5 grams of flavoring. The solution weighs...

• 250 g

• 380 g

• 375 g

• 400 g

Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6 ice cubes to the glass of water. Each ice cube weighs one ounce. After all of the ice cubes have melted, what will be the approximate weight of the glass of water?

• 5 oz

• 6 oz

• 12 oz

• 18 oz

If 25 grams of sugar dissolves into 150 grams of water, what is the new weight of the liquid?

• 25 g

• 150 g

• 175 g

• 185 g

Leslie places 5 pounds of ice in a 1 pound bucket with a lid. The next day, she notices all the ice has melted. When she weighs the bucket with the melted ice, what will it most likely weigh?

• 1 lbs

• 10 lbs

• 6 lbs