Periodic Table
Matter
Atoms
Physical/Chemical Changes
Astronomy
100

Rows on the periodic table 

What is Periods

100

The states of matter

What is Solid, Liquid, Gas?

100

What is the symbol for sodium

What is Na?

100

Tearing paper is an example of a______ change, but burning paper is an example of a ______ change.

Physical, chemical

100
Our sun is mainly composed of these 2 gases:
What is hydrogen and helium?
200

Columns on the periodic table

What is Groups

200

Solid to a liquid

What is Melting?
200

Atomic number of Chlorine

What is 17?

200

Define chemical change

What is the formation of a new substance?

200

Inner planet characteristics

Rock-like, 4 planets closest to the sun, dense, solid

300

Where metals are found on the periodic table

What is the Left?

300

Liquid to a solid

What is Freezing?
300
Atomic Number is the number of 2 subatomic particles

What is Protons and Electrons?

300
Words that describe a chemical change

What is burning, glowing, bubbling, fizzing, change in color, change in odor.

300

Outer planet characteristics

gaseous, numerous moons, large

400
The elements around the stair-step line

What is Metalloids?

400

Gas to a liquid

What is Condensation?

400

Number of electrons per energy levels 1, 2 and 3

What is 2, 8, 18?

400

Can be put back in its original form

What is physical change?

400

Next stage of our Sun its life cycle

What is Red Giant?

500

Elements are arranged by increasing ______ ______.

What is atomic number?

500

Solid to a gas

What is Sublimation?

500
Define Valence electrons

The number of electrons in the last energy level.

500

Formation of a precipitate- physical or chemical?

What is physical change?

500

Moon phase where it appears completely dark from Earth

What is New Moon?