Matter Mastery Review Worksheet
MS Physical Science Review & Reinforce
Matter Mastery Review
States of Matter, Particle Theory & Physical vs. Chemical Properties
Name:
Date:
Period:
Score:
Core Law: Matter is anything that has mass and takes up volume (space). NGSS MS-PS1-2
1
States of Matter & Kinetic Theory Matrix
Complete the table comparing characteristics and particle behavior of the 3 common states of matter.
| State | Definite Shape? | Definite Volume? | Particle Arrangement | Particle Motion & Energy |
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| Solid | | | | |
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Liquid
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Gas
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Concept Connector: What happens to the speed of particles and the distance between them when thermal energy is added to a solid until it melts into a liquid?
2
Properties of Matter: Classification & Evidence
Physical Property
Can be observed or measured without changing substance identity (e.g., density, boiling point, color).
Chemical Property
Describes ability to react and form new substances (e.g., flammability, reactivity with acid, oxidation).
Classify each property as Physical (P) or Chemical (C). Briefly note your reasoning.
1. Density of copper is 8.96 g/cm³ [ P / C ]
Why:
2. Rubbing alcohol evaporates at 82°C [ P / C ]
Why:
3. Magnesium burns with a bright flame [ P / C ]
Why:
4. Iron forms rust when exposed to moisture [ P / C ]
Why:
5. Table salt dissolves easily in water [ P / C ]
Why:
6. Vinegar reacts with baking soda to form gas [ P / C ]
Why:
Matter Mastery Review • Middle School Science Page 1 of 2 — Turn over for Physical/Chemical Changes & Lab Challenge
Matter Mastery Review • Page 2: Physical & Chemical Changes
Student Name:
5 Clues of Chemical Change:
1. Color Change 2. Gas Bubbles 3. Temp Change 4. Precipitate 5. Light / Odor
3
Change Investigation: Real-World Scenarios
Classify each event as Physical (P) or Chemical (C) and note observable evidence.
A. Slicing Strawberries [ P / C ]
Berries are chopped into small pieces for a salad.
Evidence:
B. Baking Cookies [ P / C ]
Dough rises, browns in the oven, and releases an aroma.
Evidence:
C. Boiling Water [ P / C ]
Liquid water heats to 100°C and turns into steam.
Evidence:
D. Snapping a Glow Stick [ P / C ]
Two liquids mix inside plastic and emit bright glow.
Evidence:
E. Dissolving Sugar [ P / C ]
White crystals disappear into tea; sweet taste spreads.
Evidence:
F. Rusted Iron Nail [ P / C ]
Shiny grey iron turns into crumbly reddish-brown flakes.
Evidence:
4
Lab Detective: The Mystery Powders
Lab Briefing:
Scientist Jordan tests two unknown white powders by adding 15 mL of vinegar to each:
Beaker A: Powder dissolves with stirring. Temp stays 22°C. When water evaporates later, identical white crystals remain.
Beaker B: Vigorous bubbling occurs, gas escapes, temperature drops to 17°C, and a new cloudy solid forms.
1. Beaker A Claim & Evidence: Did Beaker A undergo a physical or chemical change? Justify your claim.
2. Beaker B Claim & Evidence: Identify at least TWO specific signs showing a chemical change occurred in Beaker B.
3. Law of Conservation of Mass Challenge:
Initial mass was 30.0 g (powder + vinegar). After bubbling stopped in open beaker, mass was 28.6 g. Did mass get destroyed? Where did the missing 1.4 g go?
Matter Mastery Review • Middle School Science Page 2 of 2 — End of Worksheet
