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G8 Q4: Science Quiz #1 Reviewer > Quiz Reviewer > Flashcards

Quiz Reviewer Flashcards

1
Q

Taxonomic Classification:

What are species?

A

species is a group of populations
whose members have the
potential to interbreed in nature
and produce viable, fertile
offspring

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2
Q

Taxonomic Classification:

What is prokaryotic?

A

Single-celled organisms
that do not have nucleus
or organelles

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3
Q

Taxonomic Classification:

What is in Domain Eukarya?

A

Prostia, Fungi, Plantae and Animalia.

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4
Q

What is Kingdom Protista?

A

It is a large, diverse group of eukaryotic organisms. The group consists of unicellular and multicellular aquatic organisms. Some protists reproduce sexually while others reproduce asexually.

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5
Q

What is Kingdom Fungi?

A

Fungi are multicellular eukaryotic organisms (except yeast, which is unicellular.) Their bodies consist of mycelium, consisting of small filaments called hyphae, some of which are divided by walls called septa. Septa have holes through which cytoplasm and organelles flow from one segment to another. In some species, the hyphae do not have septa. These species are known as coenocytic.

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6
Q

What is Kingdom Plantae?

A

Plants are multicellular eukaryotic organisms capable of photosynthesis. Plant cells have cell walls made up of cellulose. They have chloroplast and chlorophylls a and b. Plants are well adapted to aquatic and terrestrial environments.

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7
Q

What is Kingdom Animalia?

A

Kingdom Animalia is animals grouped into invertebrates and vertebrates. Invertebrates are animals without backbones, whereas vertebrates are animals with backbones.

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8
Q

What is the three groups matter is classified into?

A

Solid, Liquid and Gas

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9
Q

Describe Solids

A

Solid have particles that are tightly packed and arranged in an orderly manner. They have a definite shape. Among all the three states, solid have the least thermal energy and is the most difficult to compress.

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10
Q

What is compressibility?

A

It is the extent to which an object can be squeezed or compressed.

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11
Q

What is thermal energy?

A

Thermal energy is the energy of a substance that is related to temperature and the random motion of its molecules. The more thermal energy an object has, the more freely its particles can move.

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12
Q

Describe what liquids are.

A

Liquids have loosely packed particles. They have no shape of their own. Compared to solids, liquids have higher thermal energy, and they are less difficult to compress.

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13
Q

Describe what Gases are.

A

Gases, among other states, have the most distant arrangement of particles; hence they, have the highest thermal energy, and they are the easiest to compress. Like liquids, they have no shape of their own.

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14
Q

Give an example of a Solid.

A

solid ice, sugar, rock, wood, etc.

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15
Q

Give an example of Liquid.

A

water, oil, alcohol, and mercury

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16
Q

Give an example of a Gas.

A

air

17
Q

Define Energy and Changes in the state.

A

The state of matter depends on how much thermal energy a matter possesses. A change of state will occur when thermal energy is absorbed or released. Certain conditions influence the amount of thermal energy of a substance. For instance, the thermal energy of a substance is higher at a warmer temperature than at a cooler one.

18
Q

How does a change of state occur?

A

A change of state occurs whenever there is an increase or decrease in thermal energy. When a substance undergoes a change in state, it only changes in physical structure and not in its chemical composition.

19
Q

What is melting?

A

Melting is the process in which a solid changes into liquid state by gaining thermal energy from the enviornment.

20
Q

What is a melting point?

A

A melting point is a specific temperature at which a solid turns into a liquid state.

21
Q

What is freezing?

A

Freezing is the process in which a liquid transforms into solid state by losing thermal energy.

22
Q

What is the freezing point?

A

The feezing point is the specific temperature at which liquid turns into solid state.

23
Q

Define evaporation.

A

Evaporation is the process in which a liquid turns into gaseous state by gaining enough thermal energy from the environment.

24
Q

Define the boiling point.

A

The boiling point is the specific temperature at which liquid turns to gaseous state.

25
Q

What is condensation?

A

Condensation is the process in which a gaseous substance turns into liquid state by losing thermal energy to the environment.

26
Q

How does sublimation take place?

A

Sublimation takes place when the particle of a solid gain enough thermal energy to become a gas without passing through the liquid state.

27
Q

How does deposition occur?

A

Deposition occurs when a gas turns into solid form without going through the liquid state.

28
Q

What is an element?

A

An element is a substance that cannot be broken down into a simpler substance.

29
Q

What is a compound?

A

A compound is a substance composed of two or more elements which are chemically combined in a more specific ratio.

30
Q

What is a mixture?

A

A mixture is made up of two or more substances elements, compounds, or both that are combined by physical means.

31
Q

Describe a solution. (Homogenus Mixture)

A

A solution has a uniform appearance even if the substance that is made of are not chemically combined.

TABLE SALT + WATER = SOLUTION

32
Q

Describe suspension (Heterogeneous Mixture)

A

A suspension consists of particles that are large enough are not dissolved and can be seen by the unaided eye.

OIL + WATER = SUSPENSION

33
Q

Describe a colloid (Heterogeneous Mixture)

A

A colloid consists of finely ground particles that are suspended in the liquid. Its small particles have the ability to disperse light.

CORNSTARCH + WATER + HEAT = COLLOID

G8 Q4: Science Quiz #1 Reviewer (1 decks)

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