Elementary School Lessons

Lesson 9

You need light to see.

Light may come from natural or man-made.

Natural light are the sun and the moon.

Man-made lights are those that use electricity and/or batteries to give off light. Examples are: light bulbs, flashlight, fluorescent lights.

Other man-made lights are candles, gas lamps and/or torches. Gas lamps and torches need fuel such as kerosene to produce fire.

Lesson 8

Heat is important. The Sun is the major source of heat on Earth.

Heat is useful in among others: cooking the food, ironing the clothes, boiling water, keeping the body warm, drying wet clothes.

Too much of it can harm living things.

Heat can cause burns and blisters.

Lesson 7

Objects may float or sink

These objects floated during our experiment: pencil, cotton bud, paper boat. Objects that are very light float on water.

These objects sank when we did the experiment: paper clip, fastener. Objects made of metals, glass and cement are heavy. When placed in water, these sink.

Lesson 5

Space can be Measured

Matter occupies space and this space can be measured.

The length of an object tells how long it is. Its width tells how wide it is. The height tells how high or how tall it is. By getting the length, width and the height, you can tell how much space it occupies. This is called volume.

Lesson 6

Matter has Mass.

Mass is the amount of matter an object is made up of.

Lesson 3

Matter has color and smell.

Primary colors: red, yellow and blue.

Secondary colors: green, purple and orange

Odors: pleasant and unpleasant

These two properties are used to describe and identify matter.

Lesson 4

All objects occupy space.

Solids and liquids occupy a definite space.

Gases spread out to fill the space of the whole container regardless of its sizes.

Lesson 1

Matter may be classified unto three groups: living things, once-living things and nonliving things.

Lesson 2

Solid objects:

• has a definite shape and size

• size tells how big or small objects are

• the shape of an object can be circle, square, triangle, oval or rectangle

• some objects have irregular shapes

• solid objects do not change their size and shape but when these are cut, hammered, or torn apart, their size and shape may change.

Liquid Objects:

• objects that flow are called liquids

• Liquids can be poured.

• Liquids have no definite shape and it only follows the shape of its container and it occupies a definite shape.

Gas:

• Gas spreads to fill its container and does not have a definite shape.

• Air is an example of gas.

• The shape of a gas depends upon its container.

Notes #8

Some parts of plants are common to many plants.

Plants may differ in color, shape and texture.

Plants may also differ in hardness of stem and root growth.