States & Particles
This state of matter has particles packed tightly together and only vibrate in place.
Solid
Which tool from the assessment best measures the volume of a liquid?
A. Ruler
B. Thermometer
C. Measuring cup
D. Balance scale
C. Measuring Cup
If you freeze water and then melt it, is that change reversible or irreversible?
Reversible
Which material would be best for keeping water out of a backpack?
A. Absorbent Cloth
B. Waterproof Plastic
C. Flexible Paper
D. Soft Foam
B. Waterprood Plastic
Name the tiny pieces that make up all matter (one-word answer)
Particle
Which word describes how much space something takes up?
Volume
When two liquids combine and form a new substance what type of change is that?
Chemical change
The ability of a material to soak up liquids
Absorbency
Which state of matter flows and has particles that move past each other but stay close together?
Liquid
Which word best describes how heavy something is?
Weight
A change that forms something new
Chemical Change
Which sense is used when a student says an object has a rough texture?
A. Sight
B. Hearing
C.Touch
D. Smell
Draw or describe how particles are arranged in a gas compared to a solid. (Short answer)
Sample answer: Gas particles are far apart and move freely; solid particles are tightly packed and only vibrate.
A student wants to know how strong a material is. Which material is the best example of a strong material?
A. Paper Towel
B. Brick
C. Sponge
D. Tissue
B. Brick
Give one example of an irreversible change a 4th grader might see at home. Explain why it is irreversible.
Baking a cake — you cannot easily change it back to the original ingredients, so it is irreversible.
which word describes how easily something bends without breaking
Flexibility
Explain why a solid keeps its shape while a gas fills any container. (2–3 sentences)
Sample answer: Solids keep their shape because their particles are locked in place; gases fill containers because their particles move freely and spread out.
Explain the difference between mass and weight in one or two sentences.
Mass is the amount of matter in an object; weight is the pull of gravity on that mass.
Describe the difference between a physical change and a chemical change with one example of each.
Physical change: melting ice to water (no new substance formed). Chemical change: rusting iron (a new substance forms).
A change that cannot be undone
Irreversible Change