Review and Moon

Presentation

•

Science

•

8th Grade

•

Medium

Rebecca Smith

Used 6+ times

FREE Resource

13 Slides • 52 Questions

Review and Moon

Part 1: Atoms

Atoms - Smallest Part of Matter

Electron: Positive, NUCLEUS
Neutron: No charge (neutral), NUCLEUS
Electron: Negative, ELECTRON CLOUD

Multiple Select

Which TWO of the following subatomic particles are inside the nucleus?

protons

electrons

neutrons

There are no subatomic particles in the nucleus of an atom.

Multiple Choice

Why is the overall charge of an atom neutral (0)?

They have the same number of protons and neutrons.

They have the same number of protons and electrons.

They have the same number of electrons and neutrons.

Multiple Choice

Which subatomic particle has a neutral (0) charge?

proton

nuetron

electron

atom

Multiple Choice

Which subatomic particle has a negative charge?

proton

neutron

electron

atom

Multiple Choice

Which subatomic particle has a positive charge?

proton

nuetron

electron

atom

Multiple Choice

The smallest particle into which an element can be divided and still be the same element is a(n)

proton

neutron

electron

atom

Atoms

Atomic Number = Number of Protons
Atomic Mass = Protons + Neutrons
Neutrons = Atomic Mass - Atomic Number

Fill in the Blanks

Type answer...

Fill in the Blanks

Type answer...

Multiple Choice

How many protons does Helium (He) have?

Multiple Choice

What does the 40.08 stand for in the Calcium block?

Atomic number

Atomic weight

Atomic symbol

Multiple Choice

What does the K stand for in the Potassium block?

Atomic number

Atomic weight

Symbol for the atom

Multiple Choice

What does the number 11 stand for in the Sodium block?

atomic number

atomic weight

Stranger Things

Multiple Choice

What is the chemical symbol of this element?

gold

Multiple Choice

What is the mass number of this element?

14.01

Multiple Choice

If the number of protons equal the number of _____, the atom will have no charge

protons

neutrons

electrons

nucleus

Multiple Choice

What is the atomic number?

the number of protons

the number of protons and neutrons

the number of neutrons

the number of protons and electrons

Multiple Choice

What is the mass number?

the number of protons

the number of protons and neutrons

the number of neutrons

the number of protons and electrons

Atoms

Identity - Protons (ATOMIC NUMBER)
Reactivity - Valenvce Electrons
Outside energy level electrons

ATOMS - VALENCE ELECTRONS

Atoms WANT 8

Multiple Choice

How many valence electrons does Potassium Have?

1 Valence electron

2 Valence electron

3 Valence electron

4 Valence electron

5 Valence electron

Multiple Choice

How many valence electrons does Phosphorus Have?

1 Valence electron

2 Valence electron

3 Valence electron

4 Valence electron

5 Valence electron

Multiple Choice

How many valence electrons does Magnesium Have?

1 Valence electron

2 Valence electron

3 Valence electron

4 Valence electron

5 Valence electron

Multiple Choice

How many valence electrons does Helium Have?

1 Valence electron

2 Valence electron

3 Valence electron

4 Valence electron

5 Valence electron

Multiple Choice

How many valence electrons does Hydrogen Have?

1 Valence electron

2 Valence electron

3 Valence electron

4 Valence electron

5 Valence electron

Counting Atoms

Coefficient - BIG NUMBER IN THE FRONT - MULTIPLY THROUGH
Subscript - small number to the right of a SYMBOL or PARENTHESES - ONLY APPLIES TO THE THING TO THE LEFT OF IT.

Multiple Choice

How many atoms are there TOTAL in H₂SO₄?

Multiple Choice

How many elements are in C₆H₁₂O₆?

Multiple Choice

How many Magnesium atoms are in 10MgCl₂?

Multiple Choice

How many Oxygen atoms are in H₂O?

Multiple Choice

How many Hydrogen atoms are in 4H₂O?

Forces

Balanced - an object not moving
Unbalanced - an object that is pushed or pulled
Force - push or pull
Force - Measured in NEWTONS
Net Force - total combined forces
Same direction - ADD
Opposite direction - SUBTRACT

Multiple Choice

Two forces act on an object to the right at the same time. What force is required to bring the object into equilibrium?

9 N to the right

9 N to the left

3 N to the left

18 N to the left

Multiple Choice

Which one is balanced?

top

bottom

both

Multiple Choice

If an object is stationary (not moving) the forces acting upon it are _____________

unbalanced

weak

balanced

Hulk Smash!

Multiple Choice

Jonny and Patty are pushing against a basketball. Both of them push against theball on opposite sides with a force of 20 N to keep the ball still. What is the net force?

400 N

24 N

0 N

40 N

Multiple Choice

What is the net force in this picture?

50 Newtons to the right

950 Newtons to the right

950 Newtons to the left

50 Newtons to the left

Multiple Choice

If the net force is equal to zero, the forces acting on the object are

balanced

unbalanced

Multiple Choice

An _______ force must act on an object for it to CHANGE it's motion

balanced

unbalanced

gravitational

electrical

Multiple Choice

What is a Force?

The distance

Mass

A push or pull

Give me a failing grade

Multiple Choice

What type of force is shown in the picture?

The Cat force

Star Wars Force

Unbalanced force

Balanced force

Plate Boundary

Converge - COLLIDE
Diverge - DIVIDE
Transform - SLIDE

Multiple Choice

What type of boundary is this?

Divergent

Convergent

Transform

Multiple Choice

Which correctly identifies the geologic process that formed the Himalayan mountains (The World's Tallest Mountains, including Mt. Everest)?

Two continental plates converging

An earthquake in a subduction zone

A tectonic plate moving over a hot plate

Movement at a transform fault boundary

Multiple Choice

The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by this boundary

Divergent

Convergent

Reform

Transform

Multiple Choice

What kind of plate boundary is shown here?

divergent

convergent

transform

strike slip

Phases of the Moon

29.5 day cycle

WAXING MOON - Increasing

Starts with New Moons
Ends with Full Moon
LIGHT ON THE RIGHT

WANING Moon - Decreasing

Full Moon back to New Moon
Light on the left.

Moon Phases

Each phases lasts about 3-5 days.
You can predict the phase of the moon.

Multiple Choice

What helps us see the phases of the moon?

Sun

Earth

Stars

Multiple Choice

How many phases does the moon have?

Multiple Choice