Moreno ITL 608 Assessment - Matter and Its Interactions

A student has the following materials: sand, water, and chalk. Which two materials could the students combine to make a mixture?

• Only water and chalk can form a mixture.

• Only water and sand can form a mixture.

• Only chalk and sand can form a mixture.

• Any 2 of the 3 together can form a mixture.

A piece of chalk becomes shorter as it is used. Which is not true of the shorter piece of chalk?

• its mass has changed

• its shape has changed

• its physical properties have changed

• its chemical properties have changed

Which of the following two choices are chemical reactions?

• sugar dissolving in water

• water turning into steam

• burning wood

• mixing baking soda and vinegar

• tearing paper

Is making orange juice a physical or chemical change?

• Physical 
• Chemical

Is mold growing on cheese a physical or chemical change?

• Physical 
• Chemical

The left side of the equation below is called

• Products
• Reactants

The right side of the equation below is called the

• products
• reactants

In looking at the data table in the image, we see that there is evidence of particle motion.

What happened to the motion of the particles?

• The particles sped up

• The particles slowed down

• The motion stayed the same

• The particles stopped

Look at the reaction involving pure methane (CH₄).

Which of the following best describes the reaction?

• Atoms of other elements are turned into water molcules

• Oxygen atoms are used to produce more oxygen atoms

• Atoms are rearranged into a new substance

• Compounds change phase from liquid to gas

On a camping trip, Mr. Moreno roasts a marshmallow in the campfire. He notices that the roasted marshmallow smells and tastes differently than the uncooked marshmallows. What change has taken place, and how does Mr. Moreno know?

• a chemical change because the marshmallow changed in taste, he knows this happened because the color and smell changed

• no change because the marshmallow is not a new substance

• only a physical change because the marshmallow changed in size

• a physical change because the marshmallow changed in appearance, he knows this happened because the color and shape changed