Science 4 - 4th Quarter Exam Reviewer

4th Quarter Examination

Part 1 - Review​

By Teacher Marygold "Goldie" R. Ora

1. To assess the memory and comprehension regarding the 4th quarter lessons discussed.

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2. To identify what part of the topics are need to be focused in studying.​

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Our goal for today

Lesson 15: Classification of Force

Force is the push and pull of an object to change its motion, direction, size, or shape.

Multiple Choice

__________ are forces in which an object comes in contact with another object.

• Non-contact Force

• Friction

• Contact Force

• Motion

​To change the direction of the ball towards your teammate, being in contact with the ball using your feet is an example of a contact force.

Kicking a soccer ball

when you exert force to an empty plastic bottle, you change its size and shape by being in contact with the object.​

Squeezing an empty plastic bottle

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Multiple Choice

What force is applied to a ball that stops the moving ball?

• friction

• gravity

• motion

Multiple Choice

Friction can produce heat.

• True

• False

Friction can produce heat.

When you rub two different surface together it produces a strong energy which results in producing heat. ​

Multiple Choice

Friction can't wear and tear an object.

• True

• False

If not controlled properly, friction can wear or tear an object.

Multiple Choice

________ is a force that acts on an object without coming physically in contact with it.

• Motion

• Contact Force

• Non-contact Force

Multiple Choice

A non-contact force that pulls everything downwards is called ____________

• Gravity

• Motion

• Magnet

GRAVITY

• All objects with mass are affected by gravity.​

• The strength of the gravitational force depends on how much mass the objects have and how far apart they are from each other.

• ​The greater the objects' mass, the greater the force of attraction; in addition, the greater the distance between objects, the smaller the force of attraction.

Multiple Choice

A force that pulls needles, pins, or other metallic materials together even from a distance is called _________

• Gravity

• Magnetism

• Motion

Multiple Choice

In a magnet, the like poles repel each other.

• True

• False

Multiple Choice

The following objects are examples of a magnetic material EXCEPT______

• paper

• steel paper clip

• cobalt coin

• iron nail

Lesson 16:Soil

• Earth's surface is surrounded with the different life resources that we need. The soil, water, and air.

Multiple Choice

Earth is made up of land and water forms.

• True

• False

Multiple Choice

It is part of the Earth’s surface that is made up of disintegrated rock, humus, and inorganic materials.

• temperature

• water

• soil

Multiple Choice

Which of the components of soil is 45%?

• water

• minerals

• organic material

• air

Which is the type of soil...

Multiple Choice

(Sand/Sandy soil) It is the poorest type of soil for growing plants and crops.

• loamy soil

• clay soil

• sand/sandy soil

• silt soil

is one of the exmaple of a plant that grows in sandy soil.​

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Coconut

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Multiple Choice

It is made up of rock and other mineral particles, which are smaller than sand and larger than clay and commonly found near the river, and lakes.

• silt soil

• sandy soil

• clay soil

• loamy soil

Roses

​The following are examples of plants that grow in silt soil.

Pomegranate

Lemon

Multiple Choice

The heaviest type of soil does not drain well or provide space for plant roots to flourish.

• silt soil

• sandy soil

• clay soil

• loamy soil

Rice

​Examples of plants and crops that grow in clay soil.

Grass

​

Multiple Choice

A combination of sand, silt, and clay such that the beneficial properties from each are included, and more suitable for farming.

• silt soil

• sandy soil

• clay soil

• loamy milk

Cotton balls

​

Examples of plants and crops that grows only on loamy soil.

Wheat

​

Multiple Choice

Loamy soil is also considered a best friend of a person

• best friend of the farmers

• the best enemy of farmers

• best friend of fishermen

Lesson 17: Soil Pollution and Soil Conservation

Soil plays a vital role in our lives. There are a lot of resources we get from the soil, including our food, habitat, and other recreational activities. ​Thus, keeping our soil and land healthy is our essential and primary responsibility.

Multiple Choice

The result of the production or addition of unwanted materials and substances.

• Soil Conservation

• Soil pollution

• Soil Restoration

Multiple Choice

Soil pollution affects the health of plants, animals, and people.

• True

• False

​There are a lot of contributors to soil pollution.

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Causes of Soil Pollution

Multiple Choice

A type of pollutant which is caused by transportation of soil pollutants with precipitation water.

• water leakage

• Natural Pollutant

• Natural Pollutant

Multiple Choice

The following are NOT example of a man-made pollutant EXCEPT __________.

• Agricultural Activities

• Acid rain

• Accidental oil spill

Multiple Choice

The following are examples of Industrial activities EXCEPT for _________

• Heavy metal smelting

• Mining

• human waste disposal

There are also natural pollutants that cause soil pollution

​The manner in which this

type of soil pollution can occur is via the

transportation of soil pollutants with

precipitation water.

Multiple Choice

A rain deposit that robs the essential nutrients in the soil.

• Droplets

• Acid rain

• Water leakage

Multiple Choice

Acid rain is caused by the mix-up of present pollutants in the air and rain that falls on the ground.

• True

• False

Multiple Choice

The chemicals present in the fuel deteriorate the quality of soil and make them unsuitable for cultivation.

• Waste disposal

• Accidental oil spills

• Acid rain

• agricultural activities

​Oil leaks can happen during the storage and transport of chemicals.

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Accidental oil spills

Multiple Select

Choose the following effects of soil pollution

• Healthy environment

• Water & Air Pollution

• Economic impact

• Good harvest

• Poor harvest

Multiple Choice

Focuses on keeping soils healthy through a combination of practices and techniques.

• soil degradation

• Soil reservoir

• soil conservation

Multiple Choice

Segregating the waste properly is one of the practices in conserving soil.

• True

• False

Lesson 18: Water in the Environment

• Water is around us.

• Water is everywhere.

• Water is an essential resource of life.​

Multiple Choice

It is the continuous movement of water on Earth.

• Ocean

• Precipitation

• Water cycle

WATER CYCLE

It is the Earth's own water recycling system.​

Multiple Choice

When water is heated in the ocean by the sun and turns into water vapor

• condensation

• evaporation

• precipitation

• collection

Multiple Choice

When plants give off drops of water it is called

• transpiration

• evaporation

• condensation

• collection

Multiple Choice

When water vapor is cooled and forms droplets

• condensation

• evaporation

• condensation

• collection

Multiple Choice

The process wherein water from the cloud that falls to Earth as rain or snow is called __________

• evaporation

• condensation

• precipitation

• collection

Multiple Choice

Which water source flows through land and meets the ocean?

• pond

• ocean

• lake

• river

Multiple Choice

Freshwater makes up how much of the Earth's water supply?

• 3%

• 97%

• 72%

Multiple Choice

A ________ is a large body of water surrounded by land.

• stream

• pond

• lake

• ocean

Multiple Choice

This is one way of using ground water for our needs

• drill a well

• upturn the soil

• fit a tap

Multiple Choice

Aquifer refers to underground layers of rock that are saturated with water.

• True

• False

Multiple Choice

Rain that seeps into the ground and fills up the cracks or tiny spaces in fractured rocks and soil is called ____________.

• riverbanks

• groundwater

• river mouth

Oceans are interconnected bodies of saltwater where boundaries are established by lands of different continents.

Ocean

Open Ended

Give at least 3 oceans in the world.

Multiple Choice

Marine life is very rare in the ocean.

• True

• False

Since it is a division of the ocean, seas are smaller in size compared to oceans.

Open Ended

Name at least one of the largest seas in the world.

Classification of Force

Lesson 15

Soil

Lesson 16

Soil Pollution and Soil Conservation

Lesson 17

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Water in the Environment

Lesson 18

Matthew 6:34

" Therefore do not be anxious about tomorrow tomorrow will be anxious for itself. Sufficient for the day is its own trouble "