I. Choose the letter of the best answer. Write your answer on the space provided for 1. When a material was cooled, what happens to its temperature?

a. disappear b. remain the same c. increased
d. decreased

2. Mark heated a chocolate bar to make a chocolate syrup. Which of the following described the changes that happened in the property of the chocolate bar when it is heated?

a. shape b. size c. A and B d. size but not the shape

3. What will happen to metals when heated?

a. expanded b. contracted c. frozen d. melted

4. When solid material is mixed with other solid material, the materials can be easily identified from one another. What type of mixture is formed?

a. homogeneous mixture
b. solid materials
c. heterogeneous mixture
d. mixed materials

5. What do you call the type of mixture in which the resulting mixture looked the same throughout?

a. solid mixture
b.homogeneous
c.mixed materials
d. heterogeneous mixture​