MSI Review

The application of knowledge to solve practical problems is known as

• science.

• curiosity.

• technology.

• experimentation.

Which is not a branch of natural science?

• physical science

• life science

• Earth science

• social science

A representation of an object or even is called

• a scientific law

• a model

• a hypothesis

• a variable

What is the SI base unit of mass?

• gram

• kilogram

• milligram

• pound

Which of these substances is not an element?

• water

• hydrogen

• aluminum

• iron

Tap water is

• an element.

• a compound.

• a substance.

• a mixture.

When a homemade oil-and-vinegar salad dressing is left standing, it separates into layers. The salad dressing is a

• solution.

• suspension.

• colloid.

• compound.

Which of the following is not an example of a physical property?

• density

• flammability

• hardness

• melting point

Which material is a poor conductor of heat?

• iron

• silver

• wood

• copper

At room temperature, a substance with a melting point of 40 degrees Celsius is a

• solid

• liquid

• gas

• mixture