Mississippi Standards 2010; 5th Grade Science; Physical Science

1. Chapter 8 Lesson 1
Matter

2. What is matter
made of ?
Matter - anything that has
mass and takes up space
Element - a material that
cannot be broken down into
anything simpler

3. Element
Classification
Three classes of elements:
1. metals
2. nonmetals
3. metalloids

4. Metals
shiny
conduct heat and electricity
bend easily

5. Nonmetals
dull
poor conductors of heat and
electricity
brittle

6. Metalloids
have some properties of
metals and nonmetals

7. Atoms
Atom - smallest unit of an
element that retains the
properties of that element

8. Inside atoms
proton - particle with a positive electrical charge
atomic number - number of protons
neutron - a particle with no electrical charge
electrons - small particles with a negative
electrical charge
atomic mass - protons and neutrons added
together

9. Critical Thinking
1. When two elements combine to form
a new substance, is the new substance an
element? Why or Why not?
2. Why are atoms considered building
blocks?

10. What are compounds?
compound- forms when two or more
elements combine.
Salt - NaCl
Rust - Fe2O 3

11. Molecule
molecules of alcohol
forms when two or more atoms join
together and share electrons

12. Critical Thinking
1. What is the minimum number of
elements that must combine to form a
compound?
2. Why do you think that compounds
have chemical names and common
names?

13. The Periodic Table
an arrangement of elements from
smallest to largest atomic weight
Dmitri Mendeleev made the first
periodic table in 1869.

14. The Periodic Table

16. Critical Thinking
1. What does a property mean?
2. What properties are used to classify
elements?
3. How many more protons are there in
a chlorine atom than in an oxygen atom?

17. What forms can
matter have?
solid - particles have little room to move
definite shape & definite volume
liquid - particles are close together but can flow past
each other
takes the shape of their container & definite
volume
gas - particles are not close together. They move past
each other easily - no definite shape or volume
plasma - super-heated gas that releases electrons

18. Plasma
The heat from the sun causes hydrogen and
helium to release electrons. The sun is a huge
ball of plasma.

19. Solid, Liquid, and
Gas

20. Critical Thinking
1. What is it called when a solid turns
into a liquid?
2. What is it called when a liquid turns
into a gas?
3. What is it called when a gas turns
back into a liquid?
4. What is an example of this?

21. Critical Thinking
5. What would happen to the particles in
each state if you tried to squeeze them?
6. What are some classroom examples of
the states of matter?