Law of Conservation of Mass

Front

If Anthony adds 0.25 grams of baking soda to 5 grams of water and stirs, what will the mass of the resulting solution be?

Back

5.25 grams

Front

If 10 grams of water are added to 5 grams of salt, how much salt water will be made?

Back

15 grams

Front

A rock weighing 60 g is broken into 2 pieces. What are possible weights for the two pieces of rock? Options: 20 g and 20 g, 30 g and 20 g, 30 g and 30 g, 45 g and 10 g

Back

30 g and 30 g

Front

Jackie creates a piece of artwork by melting crayons and mixing the colors together. She uses 10 crayons that weighed 5 grams each. What is most likely the weight of her artwork?

Back

50 grams

Front

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 itmost likely weigh?

Back

6 pounds

Front

Thomas has 1,200 g of salt water. Which are the correct measures of salt and water before they were mixed? Options: 600 g of salt and 600 g of water, 900 g of salt and 200 g of water, 1,200 g of salt and 1,200 g of water, 700 g of salt and 5,000 g of water

Back

600 g of salt and 600 g of water

Front

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?

Back

200 g

Front

A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?

Back

The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.