It's about the number!
The Metric System
Element, Compound or Mixture
Physical or Chemical Change
100

How many significant figures are there in 0.02020?

4

100

This is a scientific system of units of measurement

metric system

100

A pure gold bar is ______(element, compound, homogeneous mixture or heterogeneous mixture)

element


100

burnt cookies

chemical change

200
How many significant figures are there in 100 x 10-3

1

200

What is the metric unit abbreviation of length

m

200

Pure water is ______(element, compound, homogeneous mixture or heterogeneous mixture)

compound

200

Silver metal will turn black after being in the air  

chemical change

300

What is 1.25 + 3.10000 + 5

9.35

300

What does a nano equal to?

10-9

300

Tap water is ______(element, compound, homogeneous mixture or heterogeneous mixture)

homogeneous mixture

300

curling hair

physical change

400

Convert the following to scientific notation:

12.5 x 10-5

1.25 x 10-4

400

? uL = ? L

1 uL = 10^-6 L

400

Wet sand is ______(element, compound, homogeneous mixture or heterogeneous mixture)

heterogeneous mixture

400

Sugar dissolved in water is a chemical change

True or false?

Explain.

False

500

What is 

(25.1 - 12.250 ) / 2.526 = 

5.11

500

Convert from 26.2 mm to km

26.2 mm x ( 10-3 m / 1 mm) x ( 1 km / 103 m) = 

500

Sugar (C12H22O11) is ______(element, compound, homogeneous mixture or heterogeneous mixture)

compound

500

When water from the ocean evaporates, sodium chloride crystals are left behind

physical

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