5-PS1-2 Conservation of Matter

Front

Why does this picture demonstrate the Law of Conservation of Mass?

Back

the number of atoms of each element are the same on both sides

Front

Law of conservation of mass states that

Back

matter is neither created nor destroyed

Front

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?

Back

the mass is the same

Front

If reaction starts with 20g of reactants it should produce...

Back

a total of 20g of product

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

On a summer day, water particles from the ocean change phase as they move into the air. Which model best shows this process?

Back

Front

Which picture BEST shows what change occurs when heat is added to ice?

Back

Front

What conclusion should Veronica make from her observations?

Back

The masses of the water and the ice were both 43 grams, so the amount of matter did not change.

Front

Which piece of evidence supports the conservation of matter during the changes shown in the diagram? Options: A. The contents of the glass are wet before and after the ice melts. B. The combined mass of the glass and its contents is the same before and after the ice melts. C. The combined mass of the glass and its contents is less after the ice melts. D. The contents of the glass are colorless before and after the ice melts.

Back

The combined mass of the glass and its contents is the same before and after the ice melts.

Front

Which statement BEST describes how the pieces compare to the completed model? Options: A. Each piece is stronger than the completed model. B. The mass of the completed model equals the mass of all the pieces. C. Each piece is made from a different material than the completed model. D. The mass of the completed model is more than the mass of all the pieces.

Back

The mass of the completed model equals the mass of all the pieces.