Predicted Grade: (28)

EARTH ROCKS PRACTICE TEST

Name:

Class:

Predicted Grade: (28)

Actual Grade: (28)

Section 1: Multiple Choice (12 marks)

1.  Which of the following is NOT a type of sediment found in soil?

a.  clay

b.  sand

c.  silt

d.  boulders

2.  A soil is found to have a pH of 4. It can be said this soil is:

a.  Alkaline

b.  Acidic

c.  Neutral

d.  No information can be drawn from this

3.  The P in, NPK stands for:

a.  Pollution

b.  Potassium

c.  Phosphorous

d.  Plant

4.  Fertilizers can be helpful because they:

a.  Clean rivers

b.  Kill insects

c.  Add nutrients to soil

d.  None of the above

5.  Which of the following pieces of equipment would you use to test the pH of soil?

a.  Universal indicator paper

b.  Bunsen burner

c.  NPK kit

d.  Oven

6.  Which of the following pieces of equipment would you use to test for where a rock is on the Mohs scale (hardness)?

a.  Fingernail, steel file and copper penny

b.  Streak plate only

c.  A hammer

d.  NPK kit

7.  Which of the following pieces of equipment would you use to test for the amount of Nitrogen in a soil sample?

a.  Streak plate

b.  NPK kit

c.  Bunsen burner

d.  Universal indicator paper

8.  Rock that forms when magma/lava cools is called a(n):

a.  Metamorphic rock

b.  Sedimentary rock

c.  Igneous rock

d.  Punk rock

9.  How is a sedimentary rock formed? (choose the correct order):

a.  Weathering, transport, deposition, erosion, new rock formed

b.  Erosion, weathering, transport, deposition, new rock formed

c.  Transport, new rock formed, deposition, weathering, erosion

d.  Deposition, weathering, erosion, transport, new rock formed

10.  The process by which a sedimentary rock can change into a metamorphic rock is:

a.  Weathering and erosion

b.  Heat and pressure

c.  Melting

d.  Cooling

11.  Which layer of the earth is made of solid iron?

a.  Mantle

b.  Crust

c.  Inner core

d.  Outer core

12.  Which layer of the earth is just below the crust?

a.  Mantle

b.  Inner core

c.  Outer core

d.  None of the above

Section 2: True or False (3 marks)

Write T or F to indicate if the statement is True or False

a. The ability of limestone to fizz with hydrochloric acid is an example of a physical property False (chemical) .

b. intrusive igneous rocks have smaller crystal size because they cool faster False (bigger/slower) .

c. gravity, wind and water are some examples of agents of erosion True .

Section 3: short answer

1.  Explain how a sedimentary rock can become an igneous rock (use the shortest route possible) (2 marks): sedimentary -> melt to magma -> cools to form igneous rock

2.  a. What piece of equipment would you use to find out how much air is in a soil sample? Measuring cylinder (2!) (1 mark)

b. When you add 200 ml of water to 200 ml of soil, the combined volume is 330 ml. How much air is in the soil? (show your work).

400-330= 70

Answer: 70 ml (UNIT!)

(2 marks)

c. What percentage(%) of the soil sample is air (show your work)

(70/400)*100 = 35

Answer: 35%

(2 marks)

3.  Draw a cross section of the earth and label each of the 4 layers. Clearly show which layer is the thickest and which is the thinnest.

(4 marks)

4.  Choose 2 of the following 3 terms to define in your own words: (2 marks)

Erosion: Loose surfaces being worn away by wind, rivers, seas, rain or people.

Weathering: When rain, frost, or heat loosen or break apart sediments from a rock

Deposition: small rock fragments getting dropped as sediment

AL Earth Rocks Practice Test 2011