Solids, Liquids and Gases Flashcards

1️⃣ Familiarise yourself with the flashcards:

Look through all the flashcards to see what's on both sides.
Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

Look at the question or prompt on each card and try to remember the answer before flipping it over.
Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What are the three main states of matter you need to know in chemistry?

The three main states of matter are solid, liquid and gas.

In terms of particles, how are particles arranged and how do they move in a solid?

In a solid, particles are very close together in a fixed, regular pattern and can only vibrate on the spot.

In terms of particles, how are particles arranged and how do they move in a liquid?

In a liquid, particles are close together but not in a fixed pattern and they can move and flow past each other.

In terms of particles, how are particles arranged and how do they move in a gas?

In a gas, particles are far apart and move quickly in all directions in random motion.

How do the shape and volume of a solid compare to those of a liquid and a gas?

A solid has a fixed shape and fixed volume. A liquid has a fixed volume but takes the shape of its container. A gas has no fixed shape or volume and fills its container.

Why are solids hard to compress, using the particle model?

Solids are hard to compress because their particles are packed very closely together with almost no space between them.

Why can gases be compressed much more easily than liquids and solids?

Gases can be compressed easily because their particles are far apart, so they can be pushed closer together.

What simple word do we use to describe how tightly packed the particles are in a substance?

We use the word density to describe how tightly packed the particles are in a substance.

Compare the typical density of solids, liquids and gases in terms of particle packing.

Solids are usually the most dense because their particles are packed very closely, liquids are less dense, and gases are the least dense because their particles are far apart.

What happens to the movement of particles in a solid when it is heated but has not yet melted?

When a solid is heated, its particles vibrate faster but they stay in their fixed positions until it melts.

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