7.1.1-Substances & Mixtures

• Atom - The smallest unit of an element. (Non-Living)

  • Made of 3 parts

  • Protons (+) and Neutrons (-).`

    • Found in the center (Nucleus)

  • Electrons

    • Found outside around the Nucleus.

• Element - Anything that can not be broken down into a smaller unit.

  • Made of all the same atoms

    • If something is made of all the same atoms and no able to be broken down into anything smaller - Pure substance.

Making matter

Multiple Select

What are atoms made of

• Protons

• Nuetrons

• Electrons

• Robotics

Multiple Choice

What is an element?

• An element is a type of weather phenomenon.
• An element is a substance that cannot be broken down into simpler substances .

• An element is a type of animal.
• An element is a type of rock.

Multiple Choice

Is gold a pure element?

• YES

• NO

• 3 Make up 93% of your body mass (weight).

• There are 6 Elements that make up 99% of the bodies mass (weight).

Elements

Multiple Choice

What three elements make up living organisms?

• carbon, hydrogen, and oxygen
• iron, magnesium, and zinc
• calcium, potassium, and sodium
• nitrogen, phosphorus, and sulfur

• 3 Make up 93% of your body mass (weight).

• There are 6 Elements that make up 99% of the bodies mass (weight).

Elements

• Anything that is made of 2 at least or more atoms of the same element or of atoms of different element by some kind of bond.

• Chemical Bonds

  • act like a glue to hold atom of different elements in place

• Compounds

  • When many of the same type of Molecules are present.

Molecule

Multiple Choice

Why is this a molecule?

• it has more then 2 atoms

• not a pure substance

• It has more than one atom.

• it is not a molecule.

Match

Match the molecules

H₂O

O₂

CO₂

NaCl

C₆H₁₂O₆

• H₂O

• O₂

• CO₂

• NaCl

• C₆H₁₂O₆

Labelling

What Molecules make up 93% of the body?

Drag labels to their correct position on the image

oxygen 65%

Hydrogen 9.5%

Carbon 18.5%

Multiple Choice

Which substance is a compound?

• Neon (Ne)

• Oxygen (O₂)

• Carbon Dioxide (CO₂)

• Nitrogen (N₂)

Multiple Choice

Is Sodium (Na) an element or a compound?

• Element

• Compound

Multiple Choice

Is Sodium Chloride (NaCl) an element or compound?

• Element

• Compound

Multiple Choice

Is Iron (Fe) an atom or a molecule?

• Atom

• Molecule

Multiple Choice

Is Chlorine (Cl₂) an atom or a molecule?

• Atom

• Molecule

Multiple Choice

True or False: The tiniest bit of water that still is water is a molecule of water.

• True

• False

Multiple Choice

True or False: Hydrogen is a compound.

• True

• False

Multiple Choice

What is a compound?

• Two different elements bonded together.

• Two of the same elements bonded together.

• A mixture of different substances.

• The substances stuck together with glue.

Multiple Choice

Two or more atoms join up to make a(n)

• element

• compound

• molecule

Multiple Choice

Two or more different elements bond to form a(n)

• element

• compound

• molecule

Multiple Choice

Which is it?

• Mixture of Elements and Compounds

• Compound

• Molecule

• Mixture of Elements

• Mixture of Compounds

Multiple Choice

Which is it?

• Mixture of Elements and Compounds

• Compound

• Molecule

• Mixture of Elements

• Mixture of Compounds

Multiple Choice

Which is it?

• Mixture of Elements and Compounds

• Compound

• Molecule

• Mixture of Elements

• Mixture of Compounds

Pure Substances & Mixtures

Some text here about the topic of discussion

Multiple Choice

Both elements and compounds are pure substances. 

• AGREE

• DISAGREE

Multiple Choice

Which of these is a compound?

• Aluminium (Al)

• Carbon Dioxide (CO2)

• Nitrogen (N)

• Sand

Homogeneous Mixture is uniform and evenly mixed!

Heterogeneous Mixture is NOT uniform and NOT evenly mixed!

Multiple Choice

What are the two types of Mixtures

• Elements and Subatomic Particles

• Protons and Electrons

• Atoms and Compounds

• Homogenous and Heterogeneous

Multiple Choice

In which mixture can you not see all of the parts?

• homogeneous

• heterogeneous

Open Ended

Type 3 examples of a homogeneous mixture

Multiple Choice

In which mixture can you see all of the parts?

• homogeneous

• heterogeneous

Open Ended

Type 3 examples of a heterogeneous mixture

Some mixtures might seem to change properties because the particles are evenly spread out, but the particles don't change.

The mixture might seem like a new substance but the particles can still be separated.

​

Solutions

Multiple Choice

What is a combination of two types of matter that can easily be taken apart?

• Mixture

• Solution

• Dissolve

• Oso

Multiple Choice

What word means to have something "disappear" inside of something else?

• dissolve

• magic

• leave

• go away

Multiple Choice

Mixture or solution?

• Mixture

• Solution

Multiple Choice

Mixture or solution?

• Mixture

• Solution

Multiple Choice

Mixture or solution?

• Mixture

• Solution

Multiple Choice

Mixture or solution?

• Mixture

• Solution

Multiple Choice

Mixture or solution?

• Mixture

• Solution

Multiple Choice

Mixture or solution?

• Mixture

• Solution

Day 1 Recap

​Let's take a poll on the next slide.

Poll

What do you think so far? Do you think you understand...

PURE SUBSTANCES: Atoms/Elements, Molecules/Compounds VS. Mixtures: Heterogeneous/Homogenous and Solutions

• Smarty Pants

• Awesome!

• Let me help!

• I've been there.

Separation of Mixtures

How do we separate Homogeneous and Heterogeneous mixtures??

Multiple Choice

Are made from a combination of 2 or more elements...

• Molecules

• Pure Substances

• Compounds

• Elements

Multiple Choice

A combination that can be separated by physical processes is a .....

• Pure Substance

• Glucose

• Element

• Mixture

Multiple Choice

A mixture that is NOT evenly distributed is called ....

• Compounded

• Homogenous

• Heterogenous

• Salty

Multiple Choice

A substance with atoms that are all alike.

• element

• compound

• homogeneous mixture

• heterogeneous mixture

Chromatography

Chromatography SEPARATES substances as they are drawn across a barrier.

Chromatography happens when different colors from an ink pen spread out on a paper towel.

Distillation

Separates mixtures based on differences in substances' boiling points.

Distillation is used to process crude oil into its many different parts such as gasoline.

Multiple Choice

If a solid doesn't dissolve in a liquid we say that it is

• Soluble

• A solvent

• Insoluble

• Undissolveable

Multiple Choice

What happens when salty water is boiled?

• The salt becomes a new compound and water evaporates as it has a low boiling point

• The water evaporates and the salt remains in the beaker as it has a high melting point

• The water becomes a new compound and evaporates while salt remains in the beaker

• The water will disappear and the salt remains in the beaker as it is a solid

Multiple Choice

The process used to separate heterogeneous mixtures of solids and liquids is called

• filtration

• crystallization

• distillation

• chromatography

Multiple Choice

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

• Filter

• Screen

• Magnet

• Evaporation

Multiple Choice

This type of paper allows liquid to pass through it. What tool is it?

• sieve

• filter

Multiple Choice

Mixtures can be separated .......................

• Physically

• Chemically

• Two or more types of atom chemically

combined

• Two or more capital letters
• One substance with different elements

HBr

NH3

H2O NaHCO3

Examples:

Visual Representation

How to Distinguish

Multiple Choice

Is this a mixture?

• Yes

• No

​Exit Slip- Match It!

Multiple Choice

Study the diagram. Which of the following is represented in the diagram?

• monoatomic element

• elemental molecules

• compound molecules

Match

Match the following models to their correct descriptions.

mixture of elements

mixture of elements and compounds

mixture of compounds

elements

compounds

• mixture of elements

• mixture of elements and compounds

• mixture of compounds

• elements

• compounds

Multiple Choice

This diagram represents a _____.

• pure substance that is a compound
• mixture of elements
• pure substance that is an element
• mixture of compounds

Multiple Choice

What type of substance is pictured?

• element

• compound

• mixture

• solution

Poll

What do you think so far? Do you think you understand...

PURE SUBSTANCES: Atoms/Elements, Molecules/Compounds VS. Mixtures: Heterogeneous/Homogenous and Solutions

• Smarty Pants

• Awesome!

• Let me help!

• I've been there.

Mixtures

• Made up of many different kinds of atoms and molecules.

• Form when two or more different substances combine physically but not chemically.

• You can separate a mixture relatively easily

Day 2 Recap