characteristics of rocks

Which of the following best describes a rock?

• solid and organic material

• Solid and inorganic material

• solid and liquid organic material

• liquid and in organic material

In your science activity, you observed that some rock samples are big while others are small. Your observation clearly shows that the rocks may differ in ______.

• color

• hardness

• size

• shape

Your teacher asked you to use a hand lens to observe the rock samples. You noticed that some rocks have coarse grains while others have fine grains in them. This shows that rocks differ in ________.

• Size

• Texture

• Shape

• Color

While doing the activity, you observed that some rocks can be scratched by other rocks. This shows that rocks differ in _________.

• Size

• Color

• Hardness

• Shape

In your science class, you were able to observe that rocks differ in size, color, shape texture and hardness. This observation shows that rocks ________.

• Maybe soft or hard

• Maybe light or dark – colored

• Maybe big or small

• Have different characteristics