Matter is made of particles · Classroom

1. Hook

How to do this lesson online (no classroom teacher)

Hear the goal. Watch one worked example (pictures + steps).
Try the interactive lab on this page. Move something. Read what happened.
Guided fills, then independent practice, then the scored quiz.
Teach it back: one example + the usual mistake.

There is no classroom teacher. This page teaches you. The lab is on this site — not an outside classroom. Stay on this page. The pictures, the game, and Your work are the lesson.

Today's puzzle

Everything is made of particles too small to see! How do we know they're there?

Then: lab → guided → quiz → teach it back. The lab is the lesson, not a decoration.

2. Teach

What you're learning

Develop a model to describe that matter is made of particles too small to be seen (NGSS 5-PS1-1).

Standards alignment: NGSS 5-PS (domain-level; works with any state’s standards)

STEM in this lesson

STEM this week is Matter is made of particles: look, write a fact, label a guess, then test one change.

Hold onto these

Matter is anything that has mass and takes up space.
All matter is made of tiny particles too small to see. In solids, particles are packed tightly and vibrate in place; in liquids, they slide past each other; in gases, they spread far apart and move fast.
Evidence: air inflates a balloon; sugar dissolves and disappears but the water tastes sweet; you smell perfume across a room.

This week’s lesson

Investigation: blow up a balloon and weigh it vs an empty one (the full one is slightly heavier: air has mass). Put a drop of food coloring in water and watch it spread without stirring.

Watch one worked example

Balloon: air takes up space.
Heavier: air has mass.
Food coloring spreads: particles move.
Smell travels: gas particles.
Model: dots for particles.

Now you try — with me

Draw particle models of a solid, a liquid, and a gas, and explain one piece of evidence that particles exist.

The usual mistake

Thinking air is "nothing" because you can't see it.

Why this shows up in real life

Understanding particles explains cooking, weather, and why tires need air.

No classroom teacher today — this page is the lesson. A grown-up sits nearby. Model once, wait 10–20 seconds, then prompt. A grown-up sits nearby. Model once, wait, then let the child try.

Quick check · from this week’s lesson

Tap the answer that fits. Every item comes from this week’s lesson.

Play & explore

Hands-on practice for this lesson. Your progress saves automatically.

Your work — type it here

Do the lab (tap Look, Fact, Guess, Test). Then type what you saw, in kid words.

1. Food coloring spreads because particles

2. A full balloon weighs ___ than an empty one

3. Sugar water tastes

4. State where particles slide past each other

Lab write-up — What I saw. Then because. A grown-up can help you type.

3. Guided practice

Try these with me — type the missing word, then check.

Anything with mass that takes up space

State where particles are packed tightly

State where particles spread far apart

Reveal the thinking

Matter = tiny particles in motion.

4. Independent practice

Work the set. Check when finished — this is practice (mastery quiz is next).

5. Mastery check

Scored quiz — results save to your gradebook.

The lab is on this page

Do the experiment here. Change one thing. Read what happened. We do not send you to an outside simulation site. Today: Matter is made of particles.

Interactive lab (this page)Move the model. A fair test changes one variable.Science notebookTwo facts you noticed. One guess labeled GUESS. That is a lab write-up.Safety firstHeat, tools, and tasting unknown stuff need a grown-up. Battery models only — never wall outlets.

Classroom · Gradebook · Transcripts

Stay on this page. The studio, the lab, pictures, and Your work are the lesson.

6. Reflection / teach-back

Teach-back: Explain Matter is made of particles in your own words. Give one example and name the usual mistake.

Your teach-back