Exploring Density and Earth's Spheres

What is the formula for density?

Which unit is commonly used to express the density of a solid?

What happens to the density of most substances as temperature increases?

• Density increases

• Density decreases

• Density stays the same

• Density becomes zero

Which of the following best describes the relationship between pressure and density?

• As pressure increases, density decreases

• As pressure increases, density increases

• Pressure and density are unrelated

• As pressure increases, density stays the same

What is the approximate density of liquid water at room temperature?

In a flotation test, if an object floats on water, what can you infer about its density?

• It is more dense than water

• It is less dense than water

• It has the same density as water

• It has no density

Which of the following is an observation?

• The rock is metamorphic.

• The rock has a mass of 50 grams.

• The rock formed millions of years ago.

• The rock will sink if I place it in water.

Which of the following is an inference?

• The plant is green.

• The plant is 10 cm tall.

• The plant needs sunlight to grow.

• The plant has 5 leaves.

Which of the following is NOT one of Earth's spheres?

• Atmosphere

• Hydrosphere

• Lithosphere

• Photosphere

What is the main component of the hydrosphere?

• Rocks

• Water

• Air

• Soil