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Science~Term 1~Wk 11 > Glossary-Chapter 7 > Flashcards

Glossary-Chapter 7 Flashcards

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1
Q

Boiling Definition

A

A change of state where a liquid is heated and changes to a gas within the liquid.

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2
Q

Chemical Change Definition

A

A change that results in a new substance being formed

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3
Q

Chemical Properties

A

The characteristics of substances that determine how they react chemically with other substances.

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4
Q

Chemical Reaction Definition

A

The process of rearranging atoms in substances to form different substances.

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5
Q

Chlorophyll Definition

A

The substance found in plant leaves that make leaves green and collects energy from the sun for photosynthesis

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6
Q

Combustion Definition

A

Any chemical reaction where a substance burns in oxygen to produce light and heat

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7
Q

Condensation Definition

A

A change of state where a gas is cooled and forms a liquid.

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8
Q

Contraction Definition

A

A decrease in size

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9
Q

Corrosion Definition

A

When a metal reacts with the chemicals in its environment

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10
Q

Crystallisation Definition

A

Evaporation form a solution leaving solute crystals behind

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11
Q

Deposition Definition

A

A change of state from gas to solid

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12
Q

Diffusion

A

A process where two liquids or two gasses mix due to the motion of their particles

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13
Q

Evaporation Definition

A

The change of state when gas particles in a liquid escape to the surface to become a gas

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14
Q

Expansion Definition

A

An increase in size

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15
Q

Freezing Definition

A

The change of state from a liquid to solid

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16
Q

Glucose Definition

A

A form of sugar that is produced during photosynthesis and used in respiration to produce energy

17
Q

Melting Definition

A

The change of state when a solid is heated and forms a liquid

18
Q

Particle models Definition

A

A simplified representation of solids, liquids and gases

19
Q

Photosynthesis Definition

A

The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the sun.

20
Q

Physical Change Definition

A

A change that does not result in a new substance being produced

21
Q

Physical Properties Definition

A

The characteristics of a substance that describe how it looks, feels, smells, and responds to external forces.

22
Q

Precipitate Definition

A

A solid formed during a chemical change.

23
Q

Products Definition

A

The substance formed in chemical reactions

24
Q

Properties Definition

A

The characteristics of a substance, they can be either physical or chemical

25
Q

Reactants Definition

A

The starting substances in chemical reactions

26
Q

Respiration Definition

A

A chemical reaction that occurs in all living cells. In this reaction oxygen and glucose are converted into water and carbon dioxide while releasing energy. The energy released can be used by living things to live, grow and move

27
Q

Solidification(Freezing) Definition

A

The change of state from liquid to solid

28
Q

Solute Definition

A

A substance dissolved in a solvent to form a solution

29
Q

Solution Definition

A

A mixture where the substances are mixed on the atomic level

30
Q

Solvent Defintion

A

The substance (usually a liquid) that dissolves a solute to form a solution

31
Q

Sublimation Definition

A

A change of state from solid to gas

32
Q

Word equation Definition

A

A simple chemical equation where chemicals are represented by their names.

Science~Term 1~Wk 11 (16 decks)

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