Texas TEKS4th GradeScience

4.6A— Classifying Matter by Observable Properties

Matter and energy · b.6: Matter and energy. The student knows that matter has measurable physical properties that determine how matter is identified, classified, changed, and used. The student is expected to:

Free printable worksheet

Download the 4.6A worksheet

The lesson, the visual models, and 8 practice questions with space to work.

Download the PDF

PDF · 6 pages · answer key · no sign-up

What this standard means: TEKS §112.6.A asks fourth graders to classify and describe matter by what they can observe: temperature, mass, magnetism, relative density, and physical state. This intervention, Matter Detectives, practices that skill through eight multiple-choice scenarios rather than definitions alone. Students judge whether a thermometer beats touch for temperature, why a heavy log can still float, which metals a magnet actually picks up, and how mass differs from weight. Each question forces a choice between a correct observation and a common misconception, such as assuming touch measures temperature accurately. With repetition, students build the habit of naming the specific observable property behind a claim about matter instead of guessing from appearance alone.

What the standard says, word for word · §112.6.b.6.A

classify and describe matter using observable physical properties, including temperature, mass, magnetism, relative density (the ability to sink or float in water), and physical state (solid, liquid, gas)

Read it at the source: Texas Education Agency (TEA)

You are here · Grade 44.6A Classifying Matter by Observable Properties

Leads to · Grade 5 →§112.7.b.6.A Comparing and Contrasting Matter Properties

What’s inside

What you get, and who it’s for

Everything below is measured from the actual lesson and the actual file. Nothing here is an estimate.

Time to run: About 13 minutes. 5 min lesson, then 8 min of practice.
In the download: 6 printable pages: the full lesson, the worked examples, the visual models, and 8 practice questions with space to work. An educator answer key is included at the end, so the student pages come first and it is still ready to hand out. The lesson’s worked examples do show their solutions, because that is how they teach.
Question set: The download carries all 8 questions. The page shows 8 of them as a sample.
Question format: Every question is multiple choice. Students show their work on the page.
Assumed before this: Students who are shaky on these will struggle with 4.6A. Worth a quick check first.
§112.5.b.6.A(Grade 3) Students should already be able to measure, test, and record physical properties of matter, including temperature, mass, magnetism, and whether an object sinks or floats in water.
Dates: Published August 6, 2026. Last updated August 14, 2026.

The sample intervention

See a real lesson for 4.6A

A real intervention, not a generic worksheet.

4.6A

Matter Detectives: Spiral Review Check

Classify and describe matter using what you can observe: temperature, mass, magnetism, relative density, and physical state.

Read the passages and examples below to learn about how matter can be classified by what you observe.

Matter is anything that has mass and takes up space. We can describe matter by looking at its physical properties, which are features you can observe or measure.

Observable properties of matter

Matter can be described by physical properties you can observe or measure.

Temperature tells how hot or cold something is. Use a thermometer to measure temperature instead of only touching an object, because touch can be misleading.

Mass tells how much matter an object has. An object can have more mass and still not sink if it is less dense than water.

Magnetism describes what a magnet can attract. Magnets attract some metals, such as iron, but they do not attract every kind of metal.

Relative density tells whether something sinks or floats in water. A heavy object can float if it is spread out in a way that makes it less dense than water.

Physical state tells whether matter is a solid, liquid, or gas at room temperature. A solid keeps its shape, a liquid flows, and a gas spreads out to fill its container.

Five properties you can observe

	What it tells you	How you check it
temperature	how hot or cold it is	use a thermometer
mass	how much matter is in it	use a balance, in grams
magnetism	whether a magnet pulls it	hold a magnet near it
relative density	whether it floats or sinks	put it in water
physical state	solid, liquid, or gas	look at its shape and flow

Each property has its own test. Match the clue in the question to the right property.

Worked exampleA magnet picks up an iron nail even through a sheet of paper, but it cannot pick up a rubber eraser or a wooden craft stick.

Worked examplePumice is a rock filled with tiny air pockets. A large piece of pumice can float, while a much smaller pebble sinks — sinking and floating depend on density, not on how heavy the object is.

Worked exampleWater is a liquid at room temperature, while ice is a solid and steam is a gas.

Worked exampleA cup of warm water may feel hotter than another cup, but a thermometer shows the actual temperature.

Worked exampleA huge log floats down a river while a tiny pebble sinks straight to the bottom — the log has more mass, but it is less dense than water.

Practice questions

1
Which property tells how hot or cold something is?
- Mass
- Temperature
- Relative density
- Magnetism
2
A student says, 'This block feels cooler, so it must have a lower temperature.' What is the best correction?
- The student is wrong because a thermometer should be used instead of touch.
- The student is right because cooler-feeling objects always have the same temperature.
- The student is wrong because weight tells temperature.
- The student is right because touch is the best way to measure temperature.
3
Two objects are made of different materials. Object A has more mass than Object B, but both fit in one hand. Which statement best describes the matter in Object A?
- Object A has less matter because it fits in one hand.
- Object A has more matter because it has greater mass.
- Object A and Object B must have the same mass.
- Object A cannot be compared because it is made of a different material.
4
A student thinks the heavier object always sinks. Which case shows that idea is not always true?
- A large piece of wood floats, even if it is heavier than a small coin.
- A metal ball sinks, and a plastic bead floats.
- A small stone sinks, and a large stone also sinks.
- A paper clip floats, and a feather floats.
5
Which material is a gas at room temperature?
- A wooden block
- Ice
- Air
- Water
6
A magnet is brought near four objects. Which object is least likely to be attracted?
- A plastic straw
- A paper clip made of iron
- An iron nail
- A steel spoon
7
Two students measure an object. One says it has more mass, and the other says it weighs more. What is the best idea to remember?
- Mass tells whether an object is a solid or liquid.
- Weight tells how much matter an object has, and mass tells how hot it is.
- Mass tells how much matter an object has, and weight is the pull of gravity.
- Mass and weight always mean the same thing.
8
Which sentence best describes matter using observable physical properties?
- Matter is anything that is always heavy.
- Matter is anything that feels warm to your hand.
- Matter is anything that has mass and takes up space.
- Matter is anything that can be seen only in water.

Part of the question set is shown. Generate the whole intervention, freshly themed and with an answer key, for your own class in the product.

Watch for this

Common mistakes

Confusing feelings and size with physical properties

Students often rely on how something feels, looks, or seems instead of the property they should observe or measure. They may think something cooler by touch must have a lower temperature, or that a heavier object must sink, when temperature should be measured with a thermometer and sinking depends on relative density, not mass alone.

Vocabulary

Key terms

matter: Matter is anything that has mass and takes up space.
temperature: Temperature tells how hot or cold something is.
mass: Mass tells how much matter an object has.
physical state: Physical state tells whether matter is a solid, liquid, or gas at room temperature.

In the classroom

How to use this intervention

Use the 5-minute lesson as a brief whole-class warm-up to review the key property words, then send students into the 8-minute practice for independent work. If a few students need support, pull a small group during practice to reread the passages and talk through the examples before they answer.

Want this themed to your class instead?

Generate a fresh, standards-aligned intervention like this one, themed to whatever your students are into, in about 2 minutes.

Generate for my class

Questions educators ask

Educator FAQ

What grade is this worksheet for?

This worksheet is for Grade 4.

Which TEKS standard does it align to?

It aligns to TEKS §112.6.b.6.A on classifying and describing matter using observable physical properties.

Does the worksheet include an answer key?

Yes, the free worksheet PDF includes all questions with a complete answer key.