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Science > Science FINAL study guide > Flashcards

Science FINAL study guide Flashcards

At least 20 questions

1
Q

What are cells?

A

The basic unit of life.

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2
Q

What are the 2 types of cells?

A

Prokaryotic and eukaryotic .

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3
Q

What are some traits of prokaryotic and eukaryotic ?

A

Prokaryotic:
- cytoplasm, rhymezones, cell membrane, circular strand of DNA.
Eukaryotic: real cells, has DNA,

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4
Q

What is the difference between multicellular and unicellular?

A

Unicellular: organisms have one cell
Multicellular: More than one cell.

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5
Q

What do plant cells have that animal cells dont have?

What can plant cells do that animal cells cant?

A
  • they have chloroplasts, cell wall, and a large vacuole which animal cells don’t have.
  • Plant cells can make their own food!
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6
Q

Where does photosynthesis occur?

A

It occurs in the chloroplast.

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7
Q

What type of cell is a plant cell?

A

It is a eukaryotic cell.

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8
Q

What type of cells are bacteria cells?

A

They are prokaryotic and are very simple.

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9
Q

What kingdoms do humans belong to?

A

They belong to the animal kingdom.

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10
Q

What are the 6 kingdoms?

A
  • Animal kingdom
  • plant kingdom
  • archaebacteria kingdom
  • Eubacteria kingdom
  • fungi
  • protists
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11
Q

Elaborate on archaebacteria:

A

ancient; bad bacteria that is hard to kill and will not die with extreme temperatures)

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12
Q

What is eubacteria?

A

Everyday bacteria if you boil it you can kill it;

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13
Q

Why are the arm and base important on the microscope?

A

The arm and base are where you hold the microscope.

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14
Q

Out of course adjustment and fine adjustment, which one comes first?

A

Course adjustment comes first.

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15
Q

What does course adjustment do?

A

It moves the stage.

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16
Q

What is fine adjustment?

A

The second knob you change;

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17
Q

What do objective lenses do?

A

They magnify the specimen.

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18
Q

What are the different sizes of objective lenses?

A

Low-4x
medium-10x
high-40x

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19
Q

What’s the highest the objective lenses can go?

A

Low- 40
Medium- 100
High- 400

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20
Q

What is the nervous system based on?

A

Your five senses and is split between the central band peripheral.

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21
Q

What body system includes the small intestine and large intestine?

A

The digestive system.

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22
Q

How many muscles are in the human body?

A

There are 600 muscles.

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23
Q

What are the 3 ways muscles can move?

A

Expanding, contacting,or shrinking.

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24
Q

What does your nose do for the repository system?

A

Your nose brings and removes carbon dioxides.

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25
Q

What do joints do?

A

Joints allow the bones to move back and fourth.

26
Q

Matter science:

What is a homogenous mixture?

A

A mixture where 2 or more substances are uniformly spread out.

27
Q

What is a heterogenous mixture?

A

A mixture in which different materials can easily be distinguished and not uniformally spread out.

28
Q

What is an example of a heterogenous mixture?

A
  • cereal in milk.

- - gravel, pebbles and sand.

29
Q

A result of combining 2 or more substances:

A

A mixture.

30
Q

Is a solution able to be seen under a microscope?

A

No, it cannot be seen under a microscope.

31
Q

What do the particles in a colloid have?

A

They have particles that are well mixed but not completely dissolved.

32
Q

Are colloid particles able to be seen under a microscope?

A

Yes, but it does turn out cloudy.

33
Q

What is a substance?

A

a type of matter with a fixed composition that cannot be separated by physical means
And is composed of living and non ,living things.

34
Q

What are examples of substances?

A
  • liquid
  • gas
  • plasma
  • solid
35
Q

What is a suspension?

A

A mixture that contains a liquid where visible particles settle.

36
Q

A suspension is what kind of mixture?

A

A suspension is a heterogenous mixture.

37
Q

What is an element?

A

Substance(s) made up of atoms of the same identity!

38
Q

What is a compound?

A

A mixture that is composed of two or more separate elements

39
Q

What is a mixture?

A

Material made up of two or more substance that can be separated by physical means.

40
Q

Earth-space science:

What is an earthquake?

A

Ground movements that occur when blocks of rock and earth movie suddenly and release energy.

41
Q

Where is the epicenter?

A

It is directly above the earths surface.

42
Q

What is a fault?

A

A break in the crust of the earth along which blocks of rocks move.

43
Q

Where do most earthquakes occur?

A

They mostly occur at plate boundaries.

44
Q

What are the three types of boundaries?

A
  • transform
  • divergent
  • convergent
45
Q

At divergent boundaries, earthquakes are common along what faults?

A
  • They are common along normal faults.
46
Q

At convergent boundaries, earthquakes are common along what faults?

A
  • reverse faults
47
Q

At transform boundaries earthquakes are common along what faults?

A
  • Strike-slip faults.
48
Q

What are transform boundaries?

A
  • they are also very shallow
49
Q

What are divergent boundaries?

A
  • They pull apart

- earthquakes are shallow

50
Q

What are convergent boundaries?

A
  • plates collide

- squeezing shortens and compress rocks

51
Q

The amount of energy released by an earthquake is what?

A

Magnitude.

52
Q

What is the Richter scale?

A

The Richter scale is a tool that measures ground motion from an earthquake.

53
Q

Rock cycle: ( earth space science)

What kind of rock is a slate rock?

A

It is a metamorphic rock.

54
Q

How is an igneous rock formed?

A

It is formed by or when the magma inside the earths crust cools or hardens.

55
Q

How were metamorphic rocks formed?

A

They were once either an igneous rock or a sedimentary rock and when it ws exposed to heat or pressure it changed over time.

56
Q

How are sedimentary rocks formed?

A

First weathering causes them to break into sediments > then they are moved to different locations > the sediments after then deposited into layers > eventually being compressed and buried > cemented together.

57
Q

Why do metamorphic rocks rarely contain fossils?

A
  • The rocks go through many changes with heat and pressure and fossils cannot survive those conditions.
58
Q

When rock types are intrusive what does that mean?

A

It means they were created below earths surface.

59
Q

What is extrusive?

A

Rocks created on/above earths surface.

60
Q

What is weathering?

A

The breaking down of rocks, soil, and minerals due to weather.

61
Q

What is erosion?

A

Water, wind, or ice that moves sediment from one location and transports it to another.

Science (4 decks)

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