Science Practice Exam

1. Define abiotic.

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2. Define biotic.

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3. Categorise each of the following studies into either biotic or abiotic.

(Note: there are more lines than are necessary)

Animal behaviour, climatology, hydrology, oceanography, taxonomy,

Physiology, physics, chemistry, geology, maths – population studies, soil analysis

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Abiotic

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

Biotic

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

4. List the 4 types of spheres of the earth and what they consist of.

· _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

· _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

· _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

· _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

5. Categorise the following examples of each environment.

Competitors, disease, pH, predators, oxygen levels, carbon dioxide levels, altitude, light availability, food, mates, population sizes, type of soil, water availability, shelter, topography, minerals, available space, nesting sites

Abiotic

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

Biotic

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

6. Draw a diagram of the water cycle using the following locations:

· Water storage in the atmosphere

· Water storage in ice and snow

· Groundwater storage

· Freshwater storage

And the following actions

The Water Cycle

· Infiltration

· Groundwater discharge

· Evaporation

· Runoff

· Precipitation

· Evapotranspiration

· Condensation

· condensation

7. Draw a diagram of the carbon-oxygen cycle

The Carbon-Oxygen Cycle

8. Write the word equation for photosynthesis.

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9. Write the formula for photosynthesis.

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10. In relation to photosynthesis, fill in the following table.

Reactant

Use in Plants

Use in Animals

Waste gas

Intake gas

Intake gas

Waste gas

Food

Food

Requirement

Requirement

11. Use the following words to draw a diagram of The Carbon Cycle:

Object

Process

Carbon in animals

Burning

Carbon in soil

Burning

Carbon in plants

Burning

Carbon in air/water

Photosynthesis

Carbon in fossil fuels

Respiration (digestion)

Heat/pressure

Death

Decay

Bacteria

Respiration

12. Fill in the blanks on the following diagram of the nitrogen cycle with the following words:

· Nitrogen fixation

· Assimilation

· Ammonification

· Nitrification

· Leaching

13. List the features of a volcano.

·

· ______________________________

· ______________________________

· ______________________________

· ______________________________

· ______________________________

· ______________________________

· ______________________________

· ______________________________

· ______________________________

· ______________________________

· ______________________________

14. Fill in the following tables with the effect/s of the following natural disasters on each of the spheres.

Volcano

Hydrosphere

Atmosphere

Biosphere

Lithosphere

-

-

-

-

-

-

-

-

-

Earthquake

Hydrosphere

Atmosphere

Biosphere

Lithosphere

-

-

-

-

-

-

Dust Storm

Hydrosphere

Atmosphere

Biosphere

Lithosphere

-

-

-

-

15. Name and explain 3 examples of human impact on the natural environment.

a) _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

b) _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

c) _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

16. Fill in the blanks on the inverted pyramid to show one example of biomagnification.

Note: the tip is the largest creature

· Mouse

· Weasels

· Cricket

· Hawk

· Wheat

17. Place the correct word beside its definition.

___________________________ - all the plants and animals on earth

___________________________ - poisons accumulating up the food chain

C__________________________ - an element of the periodic table essential for life

___________________________ - non-living parts of the environment

___________________________ - poisons that kill insects

___________________________ - interactions of living things

N__________________________ - an element of the periodic table essential for life

___________________________ - preserving the environment

___________________________ - all the gases in the environment

___________________________ - a waste product of photosynthesis, an element of the periodic

table

___________________________ - everything around a living thing which affects it in its life

___________________________ - waste products of another living organism in the environment

___________________________ - all the water in the world

___________________________ - all of the living things

___________________________ - able to be reused

___________________________ - layer of gases surround the earth to keep in gases, thus heating

the earth.

___________________________ - where an organism lives

___________________________ - study of earth as a life support system

18. Give an example of a conductor and explain what it does

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19. Give an example of an insulator and explain what it does

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20. Explain why thicker wires carry higher electricity.

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21. What is the term used for an object which has properties between that of an insulator and that of a conductor. _____________________________________________________________________

22. Draw an example of both a series circuit and a parallel circuit using a battery and 2 globes each.

Parallel

Series

23. Draw the correct symbol for each of the following components of an electric circuit

Single battery

Wire

Light bulb

Ammeter

Voltmeter

Double cell

Triple cell

Open switch

Closed switch

Joined wires

Resistor

2 way switch

(on)

2 way switch (off)

24. a. Write the symbol for current ___________________________

b. Write the symbol for voltage___________________________

c. Write the symbol for resistance___________________________

25. Explain what amps measure.

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26. Explain what voltage measures

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27. Explain what resistance measures.

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28. Write the formula for ohms law

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29. Explain the thermal effect and what it is used for.

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30. Write the formula for electric power with power as the subject.

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31. Write the formula for selecting a fuse with current as the subject.

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32. Where are domains located?

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33. What 3 actions can align domains?

· ___________________________

· ___________________________

· ___________________________

34. What are electromagnets?

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35. Name 6 objects which contain electromagnets.

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

36. Match the following people with the model of the solar system and the name of the model which they believed in.

Tycho Brahe

Aristotle

Kepler

Copernicus

Hybrid

Eliptical heliocentric

Geocentric

Heliocentric

37. Arrange the following areas of the electromagnetic spectrum in the correct order:

UV Rays, Microwaves, radio waves, gamma waves, infrared, visible light, X-Rays

Long Wavelength

38. Name the 2 types of electromagnetic radiation detectable from earth which can give information about the universe:

· ___________________________

· ___________________________

39. Name the costume which Sheldon is dressed as in this scene. Explain it.

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40. Complete the following lyrics:

Our whole universe was in a hot dense state,

Then nearly ___________ ___________ years ago expansion started. Wait...

The Earth began to cool,

The autotrophs began to drool,

Neanderthals developed tools, …

41. a. Describe a black hole.

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b. Describe an asteroid.

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c. Describe a comet.

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d. Describe a meteoroid.

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e. Describe a meteorite.

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f. Describe the celestial sphere.

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42. a. Define azimuth

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b. Define elevation

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43. a. Name the following diagram:

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b. Label:

· Sirius B

· Vega

· Alpha

· Centuri

· Betelgeuse

c. Colour appropriately.

d. Which of these stars is the oldest? ___________________________________________________

e. Which are burning hydrogen as a fuel? ________________________________________________

f. Which are burning helium as a fuel? ___________________________________________________

g. Which is closest to death? __________________________________________________________

h. Which has the highest luminosity? ___________________________________________________

i. What causes stars to have higher luminosity? ___________________________________________

j. Which has the lowest luminosity? _____________________________________________________

k. Which has the highest surface temperature? ___________________________________________

l. Main sequence stars become Red Giants when they run out of what fuel? ____________________

m. Will the 3 main sequence stars ever become white dwarfs? _______________________________

n. Will Sirius B ever be a main sequence star? _____________________________________________

o. Predict what phase Vega will enter next. _______________________________________________

p. Predict what phase Betelgeuse will enter next. __________________________________________

44. Place the correct word beside its definition.

___________________________ - carry messages

___________________________ - carries the nerve impulse

___________________________ - joints in cells

___________________________ - poisons

___________________________ - gap between neurons

___________________________ - CNS

___________________________ - detect stimulus of heat/light

___________________________ - joins CNS to muscle/gland

___________________________ - connects sensory and motor neurons

45. Categorise each of the following into either the Central Nervous System or the Peripheral Nervous System.

Brain, spinal cord, sensory neurons, motor neurons, organises info, issues commands, sense organs, muscles, glands

Central Nervous System

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

Peripheral Nervous System

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

· ___________________________

46. Fill in the pathway of the nervous system.

47. Complete the following diagram of the neurons.

48. Outline the functions of the endocrine system.

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49. Outline the functions of each of the following glands.

a) Pituitary gland _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

b) Thyroid gland _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

c) Adrenal glands _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

d) Pancreas gland _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

50. Complete the following diagram of the brain.

51. Outline the functions of each of the following sections of the brain.

a) Cerebrum _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

b) Hypothalamus_________________________________________________________________________________________________________________________________________________________________________________________________________________________________

c) Cerebellum_________________________________________________________________________________________________________________________________________________________________________________________________________________________________

d) Brain stem_________________________________________________________________________________________________________________________________________________________________________________________________________________________________

e) Pituitary gland_________________________________________________________________________________________________________________________________________________________________________________________________________________________________

f) Amygdala_________________________________________________________________________________________________________________________________________________________________________________________________________________________________

52. Complete the following table of hormones.

Hormone

Source of Hormone

Comment

Adrenalin

____________________

May be caused by fright, rage or excitement

Increases breathing rate and heart beat

________

Pancreas

Too much glucose in blood

Helps cells extract glucose from blood.

Thyroxin

Thyroid glands

Controls rate of ____ ____________

_______Hormones

_______ gland (under brain)

Controls other glands

Sex Hormones

_________

Produce sperm

_________

Produce ova (eggs)

53. Label the following diagrams with the following words.

Fallopian tubes (oviduct), scrotum, seminiferous tubules, ureter, epididymis, uterus, cervix, vagina, urethra, ovary, sperm duct, testis, urethra, penis, prostate gland