NJSLA-Science Review

Front

What is the mass of a sugar solution if 30 grams of sugar is mixed with 100 grams of water?

Back

130 grams

Front

What happens to the weight of ice after it melts?

Back

The weight remains the same; it will weigh 115 grams after melting.

Front

What occurs when a liquid and powder in a cold pack combine?

Back

A chemical change occurs, causing the pack to become cold.

Front

If 200 grams of ice melts in 900 grams of water, what is the total weight of the water in the pitcher?

Back

1,100 grams

Front

What happens to the weight of a closed container of water after some water evaporates?

Back

The container weighs the same as it did before.

Front

What is a solution?

Back

A mixture where one substance is dissolved in another.

Front

What is thermal energy?

Back

The energy that comes from heat.

Front

What is evaporation?

Back

The process where liquid water turns into water vapor.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.