Mid-Year 6th Grade Science Benchmark

Front

What is energy and can it be completely used up?

Back

Energy is the ability to do work or cause change. It cannot be completely used up; it can only change forms.

Front

How does temperature affect the solubility of a substance?

Back

Increasing the temperature generally increases the solubility of a substance in a solvent.

Front

What determines whether an object will sink or float in water?

Back

An object will sink if its density is greater than the density of water (1 g/mL) and will float if its density is less.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that can only be observed during a chemical reaction, such as toxicity, flammability, or reactivity.

Front

What is the best way to warm your hands if they are cold?

Back

Rubbing your hands together generates friction, which produces heat and warms your hands.

Front

Define density and its formula.

Back

Density is the mass of an object divided by its volume. The formula is Density = Mass/Volume.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance's identity, while chemical properties can only be observed during a chemical change.

Front

What is an example of a physical change?

Back

An example of a physical change is melting ice into water.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the role of temperature in chemical reactions?

Back

Temperature can affect the rate of chemical reactions; generally, higher temperatures increase reaction rates.