Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Year 10 Science > Revision > Flashcards

Revision Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Biodiversity

A

Range of all living things

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Adaptation

A

Changes occurring in organisms to become better suited to environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Species

A

Groups of living things with similar characteristics and genetic code mostly the same

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Fossils

A

Remainder of impression of prehistoric plants or animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Exstinction

A

Species destroyed so it no less never exists

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Absolute dating

A

Using scientific knowledge and methods to determine age of fossils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Relative dating

A

Comparing layers of sediment to determine age of fossils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Natural selection

A

Change of genotype over many generations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Homologous

A

Same basic structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Analogous

A

Structures that look similar but are not

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Charles Darwin

A 
Natural selection in 1858, 
more individuals are produced than what will survive 
Best adapters survive
Competition for sources
Population change
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Evidence for evolution

A

Fossils

DNA study of biochemistry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Speciation

A

Variation -different characteristics
Isolation- prevented from breeding
Natural selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Fossil tell us

A

Age and characteristics of organisms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Why can fossil record be incomplete

A

Fossils could have weak bodies that do not withstand crushing

They could decay

Eaten by scavengers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Speed

A

How fast or slow something is

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Acceleration

A

The rate of change in velocity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Velocity

A

The rate at which displacement changes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Displacement

A

Straight line distance

20
Q

Distance

A

How far away something is

21
Q

Average speed

A

Total divided by time

22
Q

Instantaneous speed

A

Speed at exact time

23
Q

Inertia

A

Tendency to resist any change in motion

24
Q

Force

A

Push pull or twist

F=mxa

25
Q

Newton’s first law

A

Inertia- object at rest will stay at rest unless an unbalanced force is acted upon it

26
Q

Newton’s second law

A

An object will accelerate in the direction of an unbalanced force acting upon it

27
Q

Newton’s third law

A

For every action force there is an equal reaction force

28
Q

Potential energy

A

Stationary

29
Q

Kinetic energy

A

Energy of moving object

30
Q

Law of energy conservation

A

Energy can not be destroyed or created but transformed

31
Q

Photosynthesis

A

Carbon dioxide + water +energy= glucose +oxygen

32
Q

Water cycle

A

Precipitation, run off accumulation transportation evaporation condensation

33
Q

Carbon cycle

A

Carbon dioxide in air- consumed by plants to animals- animals die forming fossil fuels- burning of fossil fuels into air

+photosynthesis and respiration

34
Q

Respiration

A

Glucose+ oxygen =energy+ water +carbon dioxide

35
Q

Greenhouse gases

A

Gases that cause the heating of the planet by absorbing infrared radiation and carbon dioxide

36
Q

Ozone layer

A

A shield on the earths surface to prove that UV rays from striking the earth

37
Q

What is the threat to the ozone layer?

A

Chlorine in greenhouse gases destroys it

38
Q

Natural causes of greenhouse gases

A

Solar radiation

39
Q

Human causes of greenhouse gases

A

Deforestation, human burning of fossil fuels

40
Q

Impact of climate change

A

Temperature rising
Changes in precipitation patterns
Sea level rising

41
Q

Accuracy

A

Using appropriate equipment to carry out experiment with precision

42
Q

Reliability

A

The consistency of the experiment -numerous trials

43
Q

Validity

A

Fair test

44
Q

Controlled

A

Factors that are kept the same throughout the whole experiment

45
Q

Control

A

To show that any changes in the experiment are due to the independent variable

46
Q

Risk assess

A

Hazard
Risk
Mitigation

Year 10 Science (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions