The Nature of Science Section 2

Into how many main categories is science classified?

• Two

• Three

• Four

• Five

Which of the following is NOT one of the three main categories of science?

• Life science

• Earth science

• Social science

• Physical science

Can a scientific study overlap the categories of science?

• Yes, always

• No, never

• Sometimes

• Only in rare cases

What is a standard in the context of measurements?

• A) A unit of measurement that varies by country.

• B) An exact quantity that people agree to use to compare measurements.

• C) A system of measurement that is not based on multiples of ten.

• D) A measurement that does not require a number and a unit.

What must a measurement include to make sense?

• A) A symbol and a standard.

• B) A number and a unit.

• C) A comparison and a standard.

• D) A unit and a system.

Which system of measurement do most other nations use?

• A) The imperial system.

• B) The customary system.

• C) The metric system.

• D) The standard system.

What is the metric system of measurement based on?

• A) Multiples of five.

• B) Multiples of ten.

• C) Multiples of one hundred.

• D) Multiples of twenty.

What does SI stand for in the International System of Units?

• Standard International

• System International

• Système International d'Unités

• System of International Units

How many base units are there in the International System of Units (SI)?

• Five

• Six

• Seven

• Eight

What is a base unit in the International System of Units (SI)?

• A unit that is derived from other units

• A unit that is used for measuring time only

• A unit that is based on an object or event in the physical world

• A unit that is no longer in use