States of Matter
Lab Safety
Numerical Expressions: True or False
Taking Apart Numbers
Multiplication
200

This is the state of matter where particles are tightly packed and only vibrate in place.

Solid

200

These must always be worn over your eyes during experiments to protect against chemicals or debris.

Safety Goggles

200

4(3 × 10) = 5(12 × 2)

True:  4 × 30 = 5 × 24 → 120 = 120

200

The prime factors of 12 are these numbers.

2 and 3

200

What is 12 × 11?

132

400

In this state, particles can flow and take the shape of their container, but they have a definite volume.

Liquid

400

If a chemical spills on your skin, you should immediately do this.

Tell the teacher, and rinse it off

400

2(6 + 4) = 3(5 + 2)

False: 2 × 10 = 3 × 7 → 20 ≠ 21

400

The number 45 can be split into these two numbers that multiply to make 45.

9x5 or 15x3

400

Multiply 23 by 15.

345

600

This is the process when a solid turns into a liquid.

Melting

600

Before using any lab equipment, you should first do this to make sure you know how to use it safely.

Read the instructions

600

5 × (8 + 2) = 6 × 9

True: 5 × (8 + 2) = 6 × 9

600

The greatest common factor (GCF) of 24 and 36 is this number.

12

600

Calculate 34 × 21.

714

800

This is the process when a liquid turns into a gas at the surface, without boiling.

Evaporation
800

If your clothing catches on fire in the lab, you should do this immediately.

Stop, drop, and roll?

800

7(3 + 5) = 4(2 + 12)

True: 7 × 8 = 4 × 14 → 56 = 56

800

This is the smallest prime number that divides evenly into 42.

2

800

Find the product of 46 × 32.

1,472

1000

When ice melts into water, the particles begin to do this more freely.

Slide past each other

1000

After finishing a lab, this is what you should do before leaving the lab area.

Clean up

1000

8 + 2 × 5 = (8 + 2) × 5

False: Left: 8 + 10 = 18; Right: 10 × 5 = 50

1000

The number 56 can be broken down into these two numbers if you split it into two equal parts.

28

1000

Multiply 57 by 28.

1,596

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