Matter

Sarah is helping her father prepare dinner. She puts sugar in pitcher with water and tea. Which of the following best describes what Sarah will have in the pitcher?

• a mixture called a combination

• a solution called a combination

• a mixture called a solution

• a solution called a mixture

Which of the following represents a chemical change?

• breaking glass

• liquid water turning to ice

• mixing ingredients for a cake

• fireworks

Chloe needs to make a list of physical properties of matter. Which of these should Chloe include in her list?

• temperature

• graduated cylinder

• triple beam balance

• spring scale

The particles in a solid....

• are free to move around

• slide past one another slowly

• are packed together and vibrate off one another

• move quickly and bounce off each other

Which of the following is a physical property of gas?

• It has a definite volume

• It can be compressed

• It has a definite shape

• Its particles vibrate in place

Matter may be a gas, solid, or liquid. It can change from one state to another. Which change most often causes matter to change state?

• change in mass

• change in color

• change in volume

• change in temperature

Which of the following represents a physical change?

• ice melting

• fireworks

• corn kernels to popcorn

• baking a cake

Wilson made a list of activities that involve a chemical change. Which of these changes should be included on his list?

• ringing a bell

• making ice cubes

• picking up rocks

• making pancakes

Why is it important to measure very carefully in an investigation?

• to practice measuring skills

• to keep good records

• so others can replicate the work

• to test the accuracy of our tools

Andrea created a solution by adding food coloring to water. Her solution is also a mixture. Which of these is true of all solutions?

• They are all liquids

• They all include water

• The parts of all solutions are evenly mixed

• The substances are always permanently combined