Particles
Create a particle model for a solid, liquid, and gas.
Also**in what state of matter are particles moving the fastest?
Solid (close together - shaped)
Liquid (slightly spread apart)
Gas (very spread apart)
What is "Gas"
When I am viewing a macro view of something I am.....
What is
Viewing it with my naked eye
When particles in an object are more closely packed together, I can conclude....
The object is more dense
The object is less dense
What is...
The object is more dense
Burned wood is an example of a...
What is "chemical change"
What is Ms. Raines first name (spelled correctly)
What is...
"Elizabeth"
These properties belong to a solid, liquid, or gas.
-definite shape
-definite volume
-does not take shape of container
What is "Solid"
When am I viewing a micro view of something, I am...
What is...
Viewing it with a tool such as a microscope.
What is the equation to find density?
mass x volume
Mass/volume
volume/mass
mass - volume
What is..."Mass/Volume"
Cake batter (a mixture) is a ______ change
Cooked cupcakes is a ______ change
What is...
Physical
Chemical
Give me three things I could refer to to help me study for the Unit 1 Test tomorrow.
- science binder (classwork, notes, etc.)
- halloween review packet
- google classroom games/activities
Give me three properties of a gas
What is...
No definite shape
No definite volume
Takes shape of container
Fluidity
Name something I could view with a macro view and something I could view with a micro view.
What is...
- a desk
- particles in an object
The amount of mass per unit is the definition for...
what is..."Density"
List 3 examples of a physical change and explain how you know it is a physical change.
answers vary
What property/word describes how much matter is in a given amount of space?
density
True or False
Liquids have definite volume.
What is "True"
At the macro level, a liquid can be poured but a solid cannot. Use the micro view (how the particles act) to explain why.
In a solid, particles are locked tightly in place, so it can’t flow.
In a liquid, particles can slide past one another, allowing it to flow and be poured.
True or False
A solid is ALWAYS more dense than a liquid
False
example: solid ice is less dense than liquid water.
How do you know when a chemical change occurs?
What is...
When a new substance is created.
At the particle level, explain why a solid keeps its shape while a liquid takes the shape of its container.
In a solid, particles are tightly packed and vibrate in fixed positions. In a liquid, particles are close together but can slide past each other, allowing it to flow.
Predict how adding or removing energy (heat) affects the particle movement and spacing in solids, liquids, and gases.
When heat is added, particles move faster.
At the macro level, a gas spreads out to fill its container. Use the micro view to explain what the particles are doing to make that happen.
Gas particles move very fast and are far apart, so they spread out evenly until they fill the whole container.
When I poured in multiple liquids into a cup, why did they layer rather than mix together?
What is...
They layered based on density with the highest density at the bottom
Color, odor, and texture are all examples of...
physical properties
physical changes
chemical changes
What is....
physical properties
Two objects have the same volume, but one has more mass. Which one is denser, and why?
What is...
The one with more mass is denser because its particles are packed more tightly in the same space.