How sound travels through different materials

How sound travels through different materials

Lines of latitude and longitude

Lines of latitude and lines of longitude

Lines of latitude and lines of longitude are imaginary lines. This means they are not real. They come together to form a grid. This helps us to calculate the grid address of every place on planet earth.

The main line of latitude is the equator and this measures zero degrees. It is the only line of latitude which is a Great Circle. The equator divides the earth into the Northern and Southern Hemispheres.

How materials affect the behaviour of light

Materials affect the behaviour of light in a number of ways.

Take a look at this clip.

Eclipses

There are two types of eclipses, namely, solar eclipse and lunar eclipse.

Read more about them.

Another example of a solar eclipse.

The Flower

The flower is the part of the shoot system that enables plants to reproduce.

Food Pyramid

Read about the food pyramid.

Look at the interactive food pyramid, then take the quiz.

The Tongue

How much do you know about your tongue?

Read for information


Assessment

(A) Complete this quiz.

The Teeth

Lets learn about the teeth.

Take this short quiz.

The Tongue

The tongue is the organ of taste.

Read more about the tongue.

Taste buds

Assessment.

1. Complete this quiz.

The Digestive System

The mouth, stomach and intestines are some of the organs in the digestive system. Digestion begins in the mouth.

More information on the digestive system

Look at the video clip below which will show you the process of digestion.

Assessment

1. Complete the short quiz on digestion.

2. Use the words in the word bank to label the diagram correctly.

The Kidneys

The Kidneys - Main excretory organs

The kidneys are the main excretory organs of the body. They are two in number and are bean-shaped.

Read more information about the kidneys.

Watch the video clip below to learn more about the kidneys.

Evaluation 1

1. Complete this quiz on the kidneys.

2. See how many words you can find relating to the topic.

3. Label the diagram correctly.


THE LIVER - an excretory organ

The liver is also one of the excretory organs. In fact it is the largest interior organ of the body. It has a number of functions.

Watch this video clip and try to identify some of the functions of the liver.

Read for further information about the liver.

The Skin

The Skin - An excretory Organ

The skin is the largest exterior organ of the body. It is the organ of touch. Some of the functions of the skin include:

(a) controls/regulates body temperature
(b) protects organs of the body.

Read more about the skin.

Now take this short quiz.

Math Activities

Other Math Activities from Pre K to 8th Grade. Enjoy them !

Math Games and other activities/ Kindergarten up

Math Games and other activities for students of all ages.

Simply click on the grade level needed.

Have fun guys!!!!!!!!


I know you will enjoy these.

The Water Cycle

The Water Cycle


The Water Cycle is the journey water takes as it circles from the land to the sky and back again. The sun's heat provides energy to evaporate water from the Earth's surface (oceans, lakes, etc). Plants also lose water to the air. This process is called transpiration. The water vapour eventually condenses, forming tiny droplets in clouds.

When the clouds meet cool air over land, a process called precipitation occurs, and water returns to the land (or sea). Some precipitation soaks into the ground. Some of the underground water is trapped between rock or clay layers. This is called ground water. Most of the water flows down hill as run off, which eventually returns to the sea.

Evaluation 1.

A. Complete this short quiz.
B