Dar's DCA Review Science

Dar's DCA Review Science

Ahh... Another Test

Poll

Do you remember metals, non-metals and metalloids?

• Yes. :D

• No :(

• What's that?

Let's Review for a sec

Hmm come on brain remember. w.w

O.o

Review Time

Metals. non-metals, and Metalloids ( Compounds vs Atoms)

Poll

How do you feel about metals, non-metals and metalloids?

• Good

• Need more to review

• Umm... what did we learn again?

• What are we doing?

Poll

Time to review Compounds and Atoms. Do you remember what they are?

• Yes

• No

• A little

• No clue

Multiple Choice

This is a one or two letter representation of each element that is generally close to the element's name. The first letter of this will ALWAYS be capitalized.

• chemical symbol

• chemical number

• atomic number

• atomic mass

Multiple Choice

This is something that contains that substance and nothing else.

• pure substance

• The Periodic Table of Elements

• chemical formula

• matter

Multiple Choice

The basic building blocks of the universe. The smallest and most pure substances that can be found.

• elements

• atoms

• molecules

• compounds

Multiple Choice

Which of the following is a chemical formula?

• H₂SO₄

• Si

• Hg

• C

Multiple Choice

What is the chemical symbol of the element Hydrogen?

• Hy

• H

• Hydro

• Hg

Multiple Choice

What is an element?

• Two or more atoms joined together.

• One of over 100 types of atoms

• Two or more different elements joined together.

• A particle with no charge found in the nucleus of an atom.

Multiple Choice

What is an element?

• Two or more atoms joined together.

• One of over 100 types of atoms

• Two or more different elements joined together.

• A particle with no charge found in the nucleus of an atom.

Reflect back to Past test

Poll

Do you recall what is Density?

• Yes

• No

• A bit

• What is that?

Multiple Choice

Why do some substances float on water?

• they are warmer than water
• they are cooler than water
• they are more dense than water
• they are less dense than water

Multiple Choice

Frank has an eraser. It has a mass of 4 g, and a volume of 2 cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Multiple Choice

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Multiple Choice

What is this tool to get mass?

• triple beam balance
• ruler
• thermometer
• graduate cylinder

Multiple Choice

Which liquid is the least dense?

• oil

• water

• syrup

• plastic bottle

Multiple Choice

Which liquid is the least dense?

• oil
• water
• syrup 
• plastic bottle

Identifying Minerals

Pretty Crystal

How do we Identify Minerals?

1) Color

2) Hardness: measures how easily the mineral can be scratched

3)  Luster: How light reflect off the surface.

4) Streak: The mineral color when it is scratched

against a streak plate.

5) Cleavage: Break along a smooth flat surface.

6) Fracture: Break with rough jagged edges.

7) Density: How dense the item is according to its mass.

Multiple Choice

"Cleavage" describes the way a mineral:

• breaks

• shines

• sparkles

• resists scratching

Multiple Choice

When measuring on the Mohs scale of 1 to 10, _______ is the softest.

• 1

• 10

Multiple Choice

True or false: All minerals have the same streak color.

• True

• False

Multiple Choice

This property is measured on a scale of 1 to 10:

• Hardness

• Luster

• Cleavage

• Streak

Multiple Choice

What is a streak test?

• A test that shows a mineral's true color.

• A test that shows a mineral's hardness.

• A test that shows a mineral's luster.

• A test that shows how a mineral breaks.

Multiple Choice

The property of a mineral that describes the way it breaks into flat surfaces:

• Cleavage

• Hardness

• Luster

• Streak

Multiple Choice

This property describes the way a mineral reflects light:

• Luster

• Hardness

• Cleavage

• Streak

Multiple Choice

This property is NOT very useful in identifying a mineral:

• Color

• Luster

• Hardness

• Streak

Multiple Choice

What state of matter are all minerals?

• Solid

• Liquid

• Gas

Multiple Choice

What state of matter are all minerals?

• Solid

• Liquid

• Gas