Science Corner!Day 1

Scientist of the Day

Issac Newton

Sir Isaac Newton was one of the greatest scientists and mathematicians that ever lived.

He was born in England on December 25, 1643. He lived for 85 years and completely changed the course of scientific history.

It is said that when Sir Newton was out in his garden, an apple fell on his head.

This inspired him to explain the movement of objects using certain ‘rules’.

We call these the ‘Laws of Motion’

‘An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force’.

Law of Inertia

Second Law of Motion

Acceleration is produced when a force acts on a mass.

Everyone knows this Second Law. Everyone knows that heavier objects require more force to move the same distance as lighter objects.

For every action there is an equal and opposite re-action.

Third Law of Motion

The rocket's action is to push down on the ground with the force of its powerful engines, and the reaction is that the ground pushes the rocket upwards with an equal force.

Animal Facts• Cats conserve energy by sleeping for

an average of 13 to 14 hours a day.• Cats have powerful night vision,

allowing them to see at light levels six times lower than what a human needs in order to see.

• Elephants are the largest land-living mammal in the world.

• Elephants can swim – they use their trunk to breathe like a snorkel in deep water.

• Giraffes are ruminants. This means that they have more than one stomach. In fact, giraffes have four stomachs!!

• The horn of a rhinoceros is made from compacted hair rather than bone or another substance.

Science Picture of the Day

This is a picture of ‘Aurora Borealis’, also called ‘The Northern Lights’. Isn’t it beautiful?!

Molten iron swirls deep within the Earth, which creates a magnetic field around the planet. If you can, imagine a giant bar magnet inside the Earth. The ends of this magnet are where the magnetic north and south (or positive and negative) poles would be. These magnetic poles are close to the geographic North and South poles.

When solar winds bombard the Earth with ions, these charged particles move along the magnetic field lines toward the magnetic poles. When these particles strike our atmosphere, they erupt in spectacular displays of light, what we call the auroras.