Wouldn't
1. What is the difference between a substance and a mixture?
Substance - a material that cannot be broken down by a physical process.
Mixture - a material that can be broken down by a physical process.
8. What is the Tyndall effect?
Tyndall effect - colloids scatter light
Bonus: What is the formula for Boyle's Law?
P1V1 = P2V2
5. What is a physical property?
Physical Properties - characteristics of a material that can be observed without changing the substances in the material
Bonus: What is the formula for Charles' Law?
V1/T1 = V2/T2
13. Which state of matter (solid, liquid, gas, or plasma) has a fixed volume and takes the shape of their container?
Liquid
11. Give two examples of chemical changes.
Burning, rotting, rusting, oxidizing, cooking
15. Which state of matter (solid, liquid, gas, or plasma) is made of charged particles that take the shape of their container?
Plasma
22. Give two examples of chemical properties.
Flammable, light sensitive
3. Which of these is made of tiny particles that don't settle?
- Solution, Suspension, or Colloid?
Solution
10. Give two examples of physical changes.
Change in shape, size, color, state of matter
17. Give an example of Archimedes' Principle.
Buoyancy (anything that floats and displaces water)
2. What is the difference between an element and a compound?
Element - made of only one type of atom
Compound - made of two or more types of atoms
12. Which state of matter (solid, liquid, gas, or plasma) has close particles that don't move very much?
Solids
23. What is the density of an object that has a mass of 15g and a volume of 7 cm3
Bonus: Will the object float or sink in water?
D = m/v
15g / 7cm3 = 2.14 g/cm3
It will sink!
4. Which of these is made of big particles that eventually settle?
- Solution, Suspension, Colloid?
Suspension
20. What does Charles' Law say?
Charles' Law - the volume of a gas increases as its temperature increases, as long as pressure stays the same.
21. Give two examples of physical properties.
Boiling point, melting point, luster, magnetic, color, shape, size
6. What is a homogeneous mixture?
Homogeneous Mixture - materials cannot be separated easily
9. In which of these would you observe the Tyndall Effect?
- Solutions, Suspensions, or Colloids?
Colloids
19. What does Boyle's Law say?
Boyle's Law - as pressure on a gas decreases, its volume increases as long as temperature stays the same.
Heterogeneous Mixture - materials can be separated easily
14. Which state of matter (solid, liquid, gas, or plasma) has a volume that changes and takes the shape of their container?
Gas
16. Give an example of Pascal's Principle.
18. Give an example of Bernoulli's Principle.
Blowing air between two pieces of paper and the air pressure difference makes them move closer together.