Science Study guide

A scientific theory is ____.

• The same as a fact

• A rule describing a pattern in nature

• Accepted as a fact until it is proven wrong

• An untested idea

A scientific law does which of the following

• Describes a pattern in nature

• Explains observations and events

• Both a and b

• Neither a or b

Scientific knowledge describes the _____ world

Scientists use the _______ to measure speed

• Anemometer

• Barometer

• Hygrometer

• Thermometer

Which of the following is the SI system’s base unit for for temperature

• Fahrenheit

• Celsius

• Candela

• Kelvin

What does the prefix deka mean

• 10

• 100

• 1000

• 1/10

Which of the following is the SI system’s base unit for amount of a substance

• Kilogram

• Gram

• Mole

• Pound

What does the prefix kilo mean

• 10

• 100

• 1000

• 1/10

How long is a millisecond

• 1/10 of a second

• 1/1000 of a second

• 10 seconds

• 1000 seconds

Which number has the most number of significant didgits

• 21,500

• 0.065

• 0.6700

• 780