Physical Science quiz worksheet with questions on matter, atoms, and chemical reactions.

Let’s go through each question one by one and figure out the right answer together.

---

Question 1: The smallest unit of matter is:

We know that everything around us is made of tiny building blocks.
- A molecule is made of atoms stuck together — so it’s not the smallest.
- Mass is how much stuff is in something — not a unit of matter.
- An atom is the basic piece that makes up all elements — like hydrogen, oxygen, etc.
- A gram is a unit we use to measure mass — not a piece of matter.

✔ So the smallest unit of matter is the atom.

---

Question 2: When you bake cookies, what kind of reaction is occurring?

When you bake cookies, the dough changes into something new — it gets brown, smells different, and can’t turn back into raw dough. That means a chemical change happened.

- Physical reactions are like melting ice — still water, just changed shape.
- Chemical reactions make new substances — like baking cookies or burning wood.

✔ So this is a chemical reaction.

*(Note: Option B says “chemical reation” — probably a typo for “reaction”, but we’ll pick it anyway since it’s clearly meant to be correct.)*

---

Question 3: Anything that has mass and takes up space is called

This is the definition of matter.
- Density = how packed the matter is (mass/volume)
- Volume = how much space it takes up
- Atoms = pieces that make up matter
But the thing itself? That’s matter.

✔ Answer: matter

---

Question 4: How much "stuff" is in something is called its:

“Stuff” here means how much material is there — that’s mass.
- Atoms = the tiny particles
- Volume = how big it is (space it takes)
- Matter = the actual substance
But “how much stuff”? That’s mass.

✔ Answer: mass

---

Question 5: Which is not a state of matter?

The three main states of matter are:
- Solid (like ice)
- Liquid (like water)
- Gas (like steam)

Helium is an element — it’s a gas at room temperature, but it’s NOT a *state* of matter. It’s a type of atom/matter that exists in the gas state.

✔ So helium is not a state of matter.

---

Question 6: Which property of matter tells what something feels like?

Think about touching things:
- Shape = what form it has (round, square…)
- Color = what it looks like
But “feels like” — that’s texture! But wait… none of the options say “texture”.

Wait — let’s look again. The question says: “Which property of matter tells what something feels like?”

Actually, “feel” usually refers to texture, but that’s not listed. However, sometimes people confuse “feel” with “shape” — but no, shape doesn’t tell you if it’s rough or smooth.

Hmm… maybe the question is poorly worded? Let’s think differently.

In science, properties like color, shape, texture, hardness, etc., are physical properties.

But among the given choices:
- A. shape → tells you the outline, not how it feels
- B. color → visual only

Neither really tells you how it *feels*. But perhaps the intended answer is shape? No, that doesn’t make sense.

Wait — maybe I misread. Let me check the original image again mentally...

Actually, looking back — Question 6 only shows two options: A. shape, B. color. But neither directly relates to “feel”. This might be a trick or error.

BUT — in some contexts, “feel” could mean “what it’s like to touch”, which includes texture, but since texture isn’t an option, and shape/color aren’t related to touch…

Hold on — perhaps the question meant “which property helps describe what something is like when you interact with it?” Still vague.

Alternatively — maybe the test expects shape because you can feel the shape? Like feeling a ball vs a cube?

That’s possible. In elementary science, they sometimes say you can observe shape by sight OR touch.

So if you close your eyes and feel something, you can tell its shape.

Whereas color — you need to see it.

So between shape and color, shape is the one you can feel.

✔ So best answer: shape

---

Now let’s compile all answers:

1. C — atom
2. B — chemical reation (typo, but correct choice)
3. C — matter
4. C — mass
5. D — helium
6. A — shape

---

Final Answer:
1. C
2. B
3. C
4. C
5. D
6. A