1)The earth is composed of four layers.

Which layer is continuously moving because of convection currents?

A) inner core
B) outer core
C) mantle
D)crust

2) Mushrooms that grow on the sides of trees in a forest ecosystem are best classified by which of the following types of organisms?

A) consumers
B) decomposers
C) predators
D) producers

3) A student eats a bacon, lettuce and tomato sandwich for lunch. Which of the following is NOT correct?

A) The enzyme ptyalin begins to digest starch in bread into smaller molecules (maltose).
B) Digestion of protein found in the bacon begins in the stomach.
C) Digestion of fat found in the bacon occurs mostly in the small intestine.
D) Cellulose in lettuce is digested in the large intestine to sugar.

4) To stay alive your body must maintain a constant state of internal conditions. Your body temperature must not vary by more than a few degrees, the pH of your blood must be kept between 7.35 and 7.45, and the glucose level in your blood must be maintained within a small range.

These functions are all part of a mechanism that allows the body to maintain a balance between itself and the environment. What is that mechanism called?

A) homeostasis
B) metabolism
C) osmosis
D) diffusion

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You may use the periodic table for questions 5 and 6:

5) How many neutrons does an atom of beryllium have?

A) 4
B) 5
C) 9
D) 13

1) all the elements are noble gases
2) all the elements have a "full" outer shell of electrons
3) all the elements easily form compounds with other elements
4) all the elements have 2 electrons in their first shell

A) 1,2 and 4
B) 2 and 4
C) 3 and 4
D) 2,3 and 4
E) 1,2,3 and 4

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7) The number of stars in our own Milky Way Galaxy is in the

A) thousands
B) tens of thousands
C) millions
D) billions

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8)A gene is a length of DNA that contains the instructions to make a chemical in your body. Most of your DNA is located in the nucleus of the cell. . The DNA in the human genome provides approximately 23,000 codes for different proteins. What is the site in the cell that manufactures these proteins?

image from Wikipedia

A) mitochondria
B) nucleus
C) lysosyme
D) ribosomes

9) Shown below are the wavelengths for blue red and green light. Which of the following wave patterns is red light?

A)
B)
C)

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10) What is formed immediately after fertilization occurs?

A) sperm
B) egg
C) embryo
D) zygote

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A) screw and wedge
B) wedge and inclined plane
C) wedge and lever
D) screw and lever

12) Which statement correctly compares seismic P-waves and seismic S-waves?

A) P-waves are longitudinal waves and travel slower than S-waves.
B) P-waves are transverse waves and travel slower than S-waves.
C) P-waves are longitudinal waves and travel faster than S-waves.
D) P-waves are transverse waves and travel faster than S-waves.

13) Which is a chemical change?

A) melting an ice cube
B) dissolving sugar in boiling water
C) boiling an egg
D) crushing a can

A) solar
B) wind
C) nuclear
D) coal

15) A swinging ball is released from point A. Which statement best applies.

A) The minimum potential and kinetic energy are both at point B.
B) The maximum potential energy is at point A, maximum kinetic energy is at point B.
C) The maximum potential energy is at point C, maximum kinetic energy is at point A.
D) The maximum kinetic energy is at point A, and maximum potential energy is at point B.

16) A strong cold air mass moves into an area of warm air as shown in the image. Which statement is NOT correct about this system of weather.

Image from NASA

A) The cold air holds more moisture than warm air.
B) The heavier cold air pushes up the lighter warm air.
C) As cold air rises it will cause water vapor to be pulled out of warm air
D) Air masses with different densities do not easily mix.

A) Light reflects off the particles of a suspension but does not reflect off the particles of a colloid.
B) The particles of a suspension will sink out if left over time to rest. The particles of a colloid will not sink out.
C) Suspensions are clear, colloids are cloudy.
D) Suspensions cannot be filtered., colloids can be filtered.

A) deep-rooted plants.
B) deciduous trees.
C) conifers and small evergreen trees.
D) mosses, grasses, and small shrubs.

A) They are both in the same kingdom and both use asexual reproduction.
B) They are in different kingdoms and both use asexual reproduction.
C) They are both in the same kingdom but the amoeba uses asexual reproduction and yeast uses sexual reproduction.
D) They are in different kingdoms and both reproduce using sexual reproduction.

A) only convection
B) only radiation
C) conduction and convection
D) conduction and radiation

A) 6.5 -7.0
B) 7.5 -8.4
C) exactly 7.0
D) 5.5 -6.5

22) What motions on earth are subject to Coriolis forces?

A) All Objects on Earth will always deflected to the right of their path of motion regardless of hemisphere.
B) All objects are always deflected to the left of their path of motion regardless of hemisphere.
C) Only motions along the equator are subject to Coriolis deflection.
D) In the northern hemisphere the Coriolis effect causes deflection to the right and in the southern hemisphere to the left.
E) In the northern hemisphere the Coriolis effect causes deflection to the left and in the southern hemisphere to the right.

23) Which of the following statements are true about acceleration?

1) Acceleration is a change in velocity.
2) An applied force is required for acceleration to occur.
3) Acceleration can be either + or - in value.
4) A graph of x vs. t where x represents distance and t is time will be linear for a constant accelerating object.

A) 1 and 2
B) 1,2 and 3
C) 2 and 4
D) 1,2,3,4

24) Which characteristics does carbon possess that makes it so unique for life and organic chemistry?

1) Carbon can form single, double and even triple bonds with other atoms.
2) Carbon has both metal and non metal properties
(3) There appears to be almost no limit to the number of different structures that carbon can form
4) Carbon is one of the heaviest elements on earth.

A) 1,2, 3
B) 1, 3,4
C) 1,2
D) 1, 3

Which statements apply to the above chemical equation?

1) The substance C₆H₁₂O₆ is a compound called glucose.
2) The substance C₆H₁₂O₆ is a mixture consisting of carbon, hydrogen and oxygen.
3) The chemical equation is the simplified formula for photosynthesis which occurs in the mitochondria of plants.
4) The word equation for the chemical equation is: carbon dioxide + water + light energy ---> glucose + oxygen
5) The chemical equation is the simplified formula for photosynthesis which occurs in the chloroplast of plants.

A) 2.3.4
B) 1,4,5
C) 1,3,4,5
D) 2,4,5
E) all of the above are correct