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Lesson 1 of 7 · Matter and Reactions

Experiment30 XP🧪 Potion Kitchen

Reactants and Products

🧪Lab Brief #1

Matter and Reactions.

🎯 Your mission

Set it up. Test it. Be amazed.

⚡ The twist

Mixing two safe things doesn't always make a safe thing.

🤯

Mind = Blown

🌈 Every color you see is your brain inventing a translation of light frequencies.

🔮

Make a hypothesis first

Predict: will the mixture get hotter, colder, or stay the same?

What You'll Learn

In a chemical reaction, substances called reactants are transformed into new substances called products. The total mass stays the same because atoms are rearranged, not created or destroyed.

Key Words

Tap a word to see its definition.

Materials Needed

  • vinegar
  • baking soda

Safety First

  • Wear eye protection, keep the substance off skin, and wash your hands when you finish.

Steps

Step 1Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2Do

Mix baking soda and vinegar in a sealed bag. Weigh the bag before and after. Did the mass change? Explain why or why not using the law of conservation of mass.

Step 3Observe

Watch carefully for any changes and note the time.

Step 4Record

Create a data table to organize your measurements.

Check Your Understanding

Question 1

1 of 3

What does conservation of mass mean?

🌍

Where you see this in real life

This is happening in your kitchen right now — every time food cooks.

🏆

Stretch Challenge

Try this in real life this week.

Find one ingredient in a snack and look up what it does.

👨‍👩‍👧

For the dinner table

What's something we cook that mixes things together this way?

🎯

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

🔬Share card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

Ready?

Reactants and Products

Set it up. Test it. Be amazed.

Full screen — no distractions

🖨️

Checkout complete lesson on Matter and Reactions for 5th Grade

Get the full Matter and Reactions track as a printable PDF — all lessons, worksheets, and answer keys.

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Reactants and Products — Matter and Reactions | 5th Grade Science | LittleActivity