Division of City Schools, NavotasDistrict of Navotas I

NORTH BAY BOULEVARD NORTH ELEMENTARY SCHOOLPescador II St., NBBN Navotas City

TEST ITEM BANK IN SCIENCE V(Fourth Grading Period)

I. identify the forces that break down rocks (e.g. water, people, animals, etc)

1. Which of the following activities of man contribute to the breaking down of rocks?a. fishing b. studyingc. mining d. sky diving

2. Some animals like the rabbits and moles dig up soil for shelter or to find food. How doesn’t its activity contribute to the breaking down of rocks?

a. The food that these animals bring underground causes the breaking of rocks.b. The digging of borrowing of animals breaks the rocks into small pieces. c. Small rocks that be exposed to sunlight.d. Animals will enjoy staying in the dug holes and cause the rising of

temperature inside.3. Water, people, animals wear away bits of rocks. when this happens, which of these is

going on?a. erosion b. mountain buildingc. weatheringd. fermenting

II. Identify the different kinds of rocks

1. The eruption of Mount Pinatubo in Zambales was one of the most disastrous calamities in our time. What kind of rock will be formed out of the lava that came from the volcano?

a. Sedimentary rockb. Metamorphic rockc. Igneous rockd. Shiny rock

2. What do you call an igneous rock that has changed into another kind of rock through heat and pressure?a. Sedimentary rock b. Granite

c. Metamorphic rockd. Pumice

3. A collection of rocks includes red brown , gray and black rocks , smooth and rough rocks, soft and hard rocks , dull and shiny. What do these shows about rocks?a. Rocks have the same properties.b. All rocks come from under the groundc. Rocks have different propertiesd. All rocks are colorful

III. Demonstrate how people and plants help prevent soil erosion (e.g. contours plowing, alternate ship cropping, planting tress/cover crops, etc.)

1. Why is plant cover such as grass important?a. It holds soil in placeb. It grows easilyc. It makes the place green

2. What is reforestation ?a. It is the planting of crops alternately to hold water.b. It is the planting of more trees to block the wind.c. It is the planting of new trees.

3. What is the best way to prevent soil erosion?a. Re-planting treesb. Cutting down treesc. Constructing a wall around the denuded area

IV. Describe what a cyclone is. Identify the different kinds of cyclone.

1. A typhoon has a maximum wind of ________?a. less than 63 kph near the centerb. from 63 to 118 kph near the centerc. greater than 118 kph near the centerd. greater than 200 kph near the center

2. A tropical storm may develop into a typhoon when,a. the wind acceleratesb. the wind deceleratesc. the wind changes directionsd. the wind stops blowing

3. It is a big mass of winds and rain whirling about a center of a low pressure called eye.a. tropical b. cool windsc. light windsd. gentle winds

V. define what a typhoon is, identify the different parts of a typhoon; 1. What storm signal corresponds to the typhoon shown below?

a. Storm Signal Number 1b. Storm Signal Number 3c. Storm Signal Number 2d. Storm Signal Number 4

2. What is the appropriate storm signal for it?

a. Storm Signal Number 1b. Storm Signal Number 3c. Storm Signal Number 2 d. Storm Signal Number 4

3. Which part of a typhoon is very calm?a. headb. tailc. eye walld. eye

VI. Describe the different layers of the earth

1. This is the region in the upper mantle made of liquefied rock formed due to extreme heat and pressure

a. Mohob. Asthenosphere.c. Mantled. Crust

2. It is the layer where we live ina. Crust b. Mantle

c. Cored. Moho

3. This separates the crust from the mantle\a. Mohob. Mantlec. Crustd. Asthenosphere

VII. Describe how the moon revolves around the earth.1. How many days does the moon travel around the Earth?

a. 27 daysb. 29 daysc. 20 daysd. 13 days

2. Which statement about the moon is correct?a. The moon revolves around the earth at the same time rotates on the axis.b. The moon rotates around the earth at the same time revolves on its axis.c. The moon does not rotate nor revolve.d. The moon revolves only around the sun.

3. Why do you think the earth and the moon do not bump with each other as they travel around the sun?

a. because the moon is smaller than the earth.b. because the moon is far away from the earth.c. because the earth and the moon have their own orbits and planes.d. because the earth rotates faster than the moon