Y7 Unit 2 Test Review

Organize these options into the right categories

Groups:

(a) Solid

,

(b) Liquid

,

(c) Gas

,

(d) Plasma

• 
• definite shape and volume

• particles have low energy

• particles have middle energy

• 
• particles are randomly arranged and slide past each other

• takes shape of container and not definite volume

• particles have high energy

• particles have a regular repeating pattern

• 
• particles are close and are able to flow or pour

• easy to compress

• ionized gas
• particles are very close and are incompressible

• particles vibrate in fixed positions

• 
• takes shape of container with definite volume

• particles are far apart and able to flow and pour

• particles are randomly arranged and move randomly in all direction

• particles have the highest energy

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

NGSS.MS-PS3-2

Organize these options into the right categories

Groups:

(a) Solid

,

(b) Liquid

,

(c) Gas

,

(d) Plasma

• 
• when heated the particles expand as they vibrate faster

• When drawing.. make sure there is a regular pattern and the particles are all touching

• attractive forces are weak enough for particles to move over each other

• 
• attractive forces are so weak the particles do not touch and will bounce off each other

• 
• You don't need to know how to draw this

• When drawing..make sure there is NO pattern and particles are far apart NOT touching

• 
• Has the middle attractive forces

• Has the weakest attractive forces

• Has the strongest attractive forces

• When drawing.. make sure there is NO pattern but the particles are touching

• 
• 
• 

Tags

NGSS.MS-PS1-4

3 of these drawings are incorrect for their state of matter. Match what the students did WRONG and Identify the drawings that are correct.

• Correct liquid drawing

• 
• particles are not touching!

• 
• not touching, no pattern, diff size

• 
• not the same size particles, need circle

• 
• Correct Solid Drawing

• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Match the following elements with their symbols

Beryllium - ​ (a)  

Boron - (b)  

Sodium - (c)  

Silicon - (d)  

Sulfur - (e)  

• B
• Na
• Si
• S
• Be
• So
• Bo
• By
• N
• Su

Match the following elements with their symbols

Calcium - (a)  

Carbon - (b)  

Chlorine - (c)  

Hydrogen - (d)  

Helium - (e)  

• Ca
• C
• Cl
• H
• He
• Ch
• Hy
• Hi

Match the following elements with their symbols ​

Lithium - (a)  

Nitrogen - (b)  

Oxygen - (c)  

Fluorine - (d)  

Neon - (e)  

• Li
• N
• O
• F
• Ne
• L
• Ni
• Ox
• Fl

Match the following elements with their symbols ​

Aluminum - (a)  

Phosphorus - (b)  

Argon - (c)  

Potassium - (d)  

Calcium - (e)  

• Al
• P
• Ar
• K
• Ca
• A
• Ph
• Po
• C
• Am

Organize these options into the right categories

Groups:

(a) Elements

,

(b) Compounds

,

(c) Mixtures

• Pure substances made of more than two types of atoms/elements chemically combined

• 
• Can contain varying proportions of its components

• Properties differ from the individual elements that compose them

• Cannot be broken down into simpler substances by chemical means

• 
• Properties are a combination of the properties of its components (parts)

• Two or more elements chemically combines

• Examples include water (H2O) and carbon dioxide (CO2)

• Pure substances made of only one type of atom

• NOT a pure substance, made by physically mixing two pure substances physically together

• 
• Examples include hydrogen (H) and oxygen (O)

• Examples include air and steel

• 
• Can be separated through different separation techniques based on substances properties

• 
• Can be found on the periodic table

• Have a fixed composition

• Can be separated with chemical reactions

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

What is the measurement? Just type the number

What is the measurement? Just type the number