Evidence of New Substances

FIZZWORKS FACTORY · FIZZLING

Evidence of New Substances

Bubble Reactor Hall

Learn with Fizzling, then use your clues in the adventure. Pause whenever you need time to read or think.

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Train more: lesson transcript and free resources

Fizzling — Evidence of New Substances Bubble Reactor Hall

Hi!

I'm Fizzling.

Welcome to Bubble Reactor Hall!

Will you help me investigate evidence of new substances?

The Grumblies have mixed up our clues.

Let's check the evidence!

Bubbles can signal gas formation during a reaction, but bubbles also occur

when water boils.

One observation alone may have several explanations.

Do bubbles alone prove chemical change?

  • A. Yes
  • B. Only when the bubbles are big
  • C. No

The answer is C: No

Bubbles can signal gas formation during a reaction, but bubbles also occur

when water boils.

One observation alone may have several explanations.

That clue helps us make sense of this place.

A new solid forming from solutions, gas production

and energy changes can contribute evidence.

Compare the starting materials, conditions and products.

What gas comes from boiling water in this model?

  • A. Solid oxygen always
  • B. Water vapor
  • C. A guaranteed new substance

The answer is B: Water vapor

Our records show boiling water producing water vapor

and a separate documented reaction producing a different gas.

Both bubble, but the substance evidence distinguishes them.

Hmm...

how does that connect to our first clue?

Our records show boiling water producing water vapor

and a separate documented reaction producing a different gas.

Both bubble, but the substance evidence distinguishes them.

What additional evidence helps?

  • A. The identities of materials before and after
  • B. Only bubble size
  • C. Only the container's color

The answer is A: The identities of materials before and after

A new solid forming from solutions, gas production

and energy changes can contribute evidence.

Compare the starting materials, conditions and products.

Nice investigating!

You've been following the evidence.

Let's bring our clues together before the adventure.

Bubbles can signal gas formation during a reaction, but bubbles also occur

when water boils.

A new solid forming from solutions, gas production

and energy changes can contribute evidence.

Our records show boiling water producing water vapor

and a separate documented reaction producing a different gas.

You're ready to explore Bubble Reactor Hall with me!

Choose TRAIN MORE if you'd like another look at the clues.

Choose START ADVENTURE when you're ready.

I'll be right here!

Or choose BACK TO MAP.

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Free Evidence of New Substances teacher guide and practice (PDF)

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