1. Unit A Vocabulary

2. Substance that poses danger to health and safety
Hazardous material
Substance that poses danger to health and safety

3. Two or more substances that can be physically separated
Mixture
Two or more substances that can be physically separated

4. liquid that chemically wears away at solid materials
Corrosive
liquid that chemically wears away at solid materials

5. Can catch on fire easily
Flammable
Can catch on fire easily

6. Toxic
Materials that are poisonous if inhaled, ingested, or absorbed through the skin

7. Chemical properties
Traits of a subtance that you find by seeing how it reacts with other chemicals

8. Mixes with another liquid
Miscible
Mixes with another liquid

9. Physical properties
Characteristics that can be observed or measured without changing the substance.

10. scale for acidity 0 to 14, water is 7. Strongest acid is 1 and
*pH
scale for acidity 0 to 14, water is 7. Strongest acid is 1 and
strongest base is 14

11. How easily the substance lets electricity flows
conductivity
How easily the substance lets electricity flows

12. cubic centimeter
cm x cm x cm = cm³

13. liter= 1000ml
M=100cm
Cm=10mm

14. the amount of space an object takes up
volume
the amount of space an object takes up

15. density
Density = mass
volume

16. based on math calculations
quantitative
based on math calculations

17. qualitative
based on opinion

18. amount of atoms in a substance
mass
amount of atoms in a substance

19. force of gravity on a mass
weight
force of gravity on a mass

20. trade-offs
give and take

21. Problem 1
A cube of material has a side that measures 2 cm. When you measure its mass, it is 10 grams. Calculate its density. Show your formulas and work.

22. Problem 2
Liquid A has a density of 1 g/ml, liquid B has a density of 2.3 g/ml, and liquid C has a density of 1.2 g/ml. Draw and label a diagram of how they would be layered in a container.

23. Problem 3
A scientist is trying to identify a rock by determining its density. Explain how he/she would calculate the rock’s density.