What happens to the total weight of matter when you mix two substances together?

Which tool would you use to measure the mass of an object?

Which state of matter has a definite shape and volume?

Which property would help you decide if an object will float or sink in water?

Which of the following is a way to identify a material based on its properties?

What do you call a change where a new substance is formed?

Which of the following is NOT a physical property?

If you mix sand and iron filings, which property can you use to separate them?

You have a block of wood and a block of metal of the same size. Which property would you measure to find out which one will float in water?

You mix vinegar and baking soda and observe bubbles forming. What does this tell you?

If you want to identify an unknown metal, which property would be most helpful to test?

You measure the mass of water before and after freezing it. What should you find?

You are given four objects: a rock, a piece of wood, a plastic ball, and a metal spoon. Which property would you use to classify them as solids, liquids, or gases?

You are designing a container to keep ice from melting. Which material would be the best insulator?

You are given a mixture of salt and water. How can you separate the salt from the water?

A student wants to design a boat that floats. She tries using clay, wood, and metal. Which material is most likely to float and why?

You are given two clear liquids. Describe a way to determine if they are the same substance.

A student mixes two substances and observes that the temperature increases and a gas is produced. What evidence suggests a chemical change has occurred?

You are given a problem: design a way to keep a drink cold for the longest time. Which solution best meets the criteria and constraints?