Molecular Lab Slides Matter Lab
States, Phase Changes, and Energy
What is Matter?
Everything around us is made of matter .
Matter is made of tiny pieces called atoms or molecules .
Key Idea:
Particles are always moving!
Solid
Particles are tightly packed .
They only vibrate in place.
Solid keeps its shape .
Packed Tight
Liquid
Particles can slide past each other.
No fixed shape (it flows ).
Takes the shape of its container .
Flowing Around
Gas
Particles are far apart .
They move very fast in all directions.
Fills all available space .
Zooming Fast
Plasma
The 4th state of matter! It is like gas but with electric charge .
Found in Stars , Lightning , and Neon Signs .
Most common state in the universe!
Energy = Motion
Thermal Energy (Heat)
Adding heat makes particles move faster .
Kinetic Energy (Motion)
Energy of moving objects. More heat = More Kinetic Energy!
Heating Up
Melting
Solid to Liquid
Example: Ice to Water
Evaporation
Liquid to Gas
Example: Boiling water
Sublimation
Solid to Gas
Example: Dry Ice
Adding Energy!
Cooling Down
Freezing
Liquid to Solid
Example: Ice Cube tray
Condensation
Gas to Liquid
Example: Dew on grass
Deposition
Gas to Solid
Example: Frost on a window
Removing Energy!
Let's Review!
Fastest Moving?
Gas & Plasma
Slowest Moving?
Solid
Shape Changer?
Liquid & Gas
Phase Switch?
Energy Change
Matter Mastery Packet Matter Lab: Part 1
States of Matter Review
Name & Date
Matter is everything around us. It is made of tiny particles . The way these particles move determines the state of matter.
Solid
Particles are ____________ packed and move ____________ .
Does it keep its shape?
YES NO
Liquid
Particles ____________ past each other easily.
Takes container's shape?
YES NO
Gas
Particles move ____________ and are far ____________ .
Does it fill all the space?
YES NO
Plasma
Like gas but with ____________ charges.
Where is it found?
Word Bank
Slowly Stars Slide Fast Tightly Packed Electric Apart
Matter Lab: Part 2
Energy & Particle Motion
Thermal Energy
Thermal energy is Heat . When we add heat , we are adding energy.
Color High Heat Level
Kinetic Energy
Kinetic energy is Motion . Particles have kinetic energy.
More Heat =
The Connection
🔥
Increase Heat → Particles move ________________ (faster / slower).
❄️
Decrease Heat → Particles move ________________ (faster / slower).
Think & Write
If you want to turn solid ice into liquid water, should you ADD or REMOVE energy? Explain why.
Matter Lab: Part 3
Phase Change Matching
Draw a line to match each state change to the correct phase change term.
1
Solid → Liquid
2
Liquid → Gas
3
Gas → Liquid
4
Liquid → Solid
5
Solid → Gas
Condensation
Freezing
Evaporation
Melting
Sublimation
Cooling
Heating
Change
Matter Lab: Part 4
Atomic Notes Handout Molecular Notes
Guided Notes for States of Matter
Student Name
Introduction
Everything in the world is made of ________________ .
Matter is made of tiny pieces called ________________ .
Solids
• Particles are ____________ packed .
• They ____________ in place.
Liquids
• Particles ____________ past each other.
• Takes shape of ____________ .
Gases
• Particles are far ____________ .
• They move very ____________ .
Plasma
• Has an ____________ charge .
• Found in ____________ .
Energy and Motion
________________ Energy is also known as Heat.
Kinetic Energy is energy of ________________ .
Phase Changes
Solid → Liquid: _____________
Liquid → Solid: _____________
Liquid → Gas: _____________
Gas → Liquid: _____________
Solid → Gas: _____________
MatterAtomsTightlyVibrateSlideContainerApartFastElectricStarsThermalMotionMeltingFreezingEvaporationCondensationSublimation
Matter Check Quiz Matter Check
Unit Quiz: Expanded Version
Name:
Score:
1 Multiple Choice
1. Which state has particles that are tightly packed and only vibrate?
Solid
Liquid
2. Adding heat (Thermal Energy) makes particles move...
Faster
Slower
3. Which state takes the shape of its container and can FLOW?
Solid
Liquid
4. Which state is found in lightning and neon signs?
Plasma
Gas
5. What is Kinetic Energy?
Energy of Motion
Energy of Color
2 Phase Change Matching
Evaporation Freezing Melting Condensation
6. Liquid → Solid: ________
7. Liquid → Gas: ________
8. Gas → Liquid: ________
9. Solid → Liquid: ________
3 True or False
10. Matter is made of tiny atoms.
TF
11. Gas fills the entire space of a room.
TF
12. Sublimation is Solid turning into Gas.
TF
13. Solids have the most kinetic energy.
TF
14. Plasma is the most common state in the universe.
TF
4 Identify the State
Write the correct state (Solid, Liquid, or Gas) under each picture.
15. ___________
16. ___________
17. ___________
Matter Check Answer Key Answer Key
Matter Check Quiz: Expanded
TEACHER USE ONLY
Part 1: Multiple Choice
1. Solid
2. Faster
3. Liquid
4. Plasma
5. Energy of Motion
Part 2: Matching
6. Freezing
7. Evaporation
8. Condensation
9. Melting
Part 3: True or False
10. TRUE
11. TRUE
12. TRUE
13. FALSE (Gases have most)
14. TRUE
Part 4: Visual Identification
15. Solid
16. Gas
17. Plasma
Scoring Guide
17-15: Mastery - Student understands particle behavior and transitions.14-11: Proficiency - Student understands states but may confuse phase change terms.10 and Below: Review Required - Focus on the link between Heat and Particle Speed. 
