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Biblioteka

PS - States of Matter Lab

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Posljednje ažuriranje 6 months ago
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Pitanje 1
1.
  • Vibrating in place

  • Moving freely over and around each other

  • Move in all directions freely

  • Solid

  • Liquid

  • Gas

Pitanje 2
2.

What causes a gas to become a plasma?

Pitanje 3
3.

In plasma, the break free of the .

Drugi mogući odgovor:

nucleus

electrons

container

molecules
protons
Pitanje 4
4.

List two places where substances that are in the plasma state can be found.

Pitanje 5
5.

What will happen to the molecules of a substance as you add thermal energy (heat)?

Open the States of Matter: Basics PhET using this link. This link will open the simulation in a new window.

Once the simulation opens, select "States"

Or, you can use use the simulation embedded below.z

Pitanje 6
6.

Use the menu on the right side of the program to select Water and Solid. Submit a screenshot of the substance.

Pitanje 7
7.

How do the particles move in the solid?

Pitanje 8
8.

Use the menu on the right side of the program to select Water and liquid. Submit a screenshot of the substance.

Pitanje 9
9.

How do the particles move in the liquid?

Pitanje 10
10.

Use the menu on the right side of the program to select Water and gas. Submit a screenshot of the substance.

Pitanje 11
11.

How do the particles move in the gas?

Pitanje 12
12.

Now go back to solid water.

Use the slider under the container to add heat. Gradually add heat to the water until it becomes a liquid then a gas.

Describe what you observe as you add heat.

Pitanje 13
13.

Now bring the slider down toward "cool" to remove heat. Continue cooling until the water is in the solid form.

Describe what you observe as you remove heat.

Pitanje 14
14.

Select a new substance from the choices on the right: Neon, Argon or Oxygen.

Click the down arrow next to the thermometer and change the temperature to Celsius.

Start in the solid state and gradually add heat. Based on the motion of the particles, try to determine the temperature where the substance becomes a liquid, and then a gas. In "show your work" submit a screenshot of your substance as a solid, a liquid and a gas. Be sure to label which is which.

The substance I picked:

Becomes a liquid at:

Becomes a gas at:

Now look up the melting point and boiling point of the substance you chose. (You can use Google)

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Pitanje 15
15.

I chose:

The melting point is: .

The boiling point is:.

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Pitanje 16
16.

How close did you get to the actual numbers?

Pitanje 17
17.

Before we go, let's review the vocabulary for when a substance changes state.

Melting is when changes to .

Evaporation is when changes to .

Sublimation is when changes to .

Condensation is when changes to .

Freezing is when changes to .

Deposition is when changes to .

Drugi mogući odgovor:
liquid

solid

gas