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Introduction to light

Introduction to light

Have you ever thought about what it would be like to live without light Perhaps youve been on a tour through some famous caverns when the gu
10 Jan 2019, 01:41 AM IST
The nervous system and the brain

The nervous system and the brain

Our nervous system enables our body to communicate The central nervous systemincludes the brain and the spinal cord The peripheral nervous s
09 Jan 2019, 01:00 AM IST
What is DNA?

What is DNA?

Deoxyribo Nucleic Acid DNA is a chemical found in the nucleus of cells and carries the instructions for the development and functioning of l
08 Jan 2019, 12:09 AM IST
Hot water: Convection

Hot water: Convection

The term geothermal is used to refer the heat that comes from the Earths interior This heat often rises to the Earths surface through volcan
07 Jan 2019, 03:41 AM IST
Geological matters

Geological matters

Youve probably heard in the news about volcanic eruptions, or you might remember when Mount St Helens erupted Perhaps youve even seen an act
05 Jan 2019, 12:52 AM IST

Eyes and vision

04 Jan 2019, 12:47 AM IST

Learn about germs

02 Jan 2019, 12:33 AM IST

Acids, bases and water

01 Jan 2019, 01:01 AM IST

Blood and the circulatory system

29 Dec 2018, 01:48 AM IST

Science of the circus

28 Dec 2018, 01:14 AM IST

Are two eyes better than one?

27 Dec 2018, 03:19 AM IST

Oil cleanup experiments

22 Dec 2018, 01:43 AM IST

Learn about animal homes

21 Dec 2018, 02:12 AM IST

Compass activities

20 Dec 2018, 03:49 AM IST

Balloon hovercraft

19 Dec 2018, 01:29 AM IST

How flowers grow

18 Dec 2018, 01:16 AM IST

Learn about Electromagnetism

14 Dec 2018, 12:48 AM IST

MORE FROM Hans Classroom

Learn about Hibernation

Many animals snuggle up in caves, burrows holes in the ground, or hollow tree trunks and sleep during the cold winter months when food is harder to find and cold weather makes it h
13 Dec 2018, 03:04 AM IST

Learn about soil layers

You may know that the Earth is made of several layers and that the outer layer is called the crust Soil is the very top layer of the crust It is important for life on earth because
10 Dec 2018, 11:56 PM IST

Learn about birds

Birds have special ways of surviving Their bodies are a major one Special lightweight bones help them fly and feathers help protect them from bad weather Bones Birds have very ligh
08 Dec 2018, 01:20 AM IST

Learn about dinosaurs, fossils

Fossils are whats left of plants or animals after being buried in mud for a very long time until it turns into rock Hard parts of animals, like bones and teeth, are the most common
06 Dec 2018, 03:04 AM IST

Learn about leaves

Leaves are very important for trees they provide food for the whole tree or plant How do they do it Leaves use a very special process called photosynthesis say fotoSINthuhsis to c
05 Dec 2018, 03:54 AM IST

Introduction to metric measurements

In the study of science, measurement is very important, as it allows for precision and accuracy whether you are performing chemistry experiments or solving physics equations It is
04 Dec 2018, 01:13 AM IST

Learn about mass and weight

Pick up a book and then drop it on the floor Why did it fall It fell because of gravity Gravity is a very strong force that pulls on objects All objects experience the force of gra
01 Dec 2018, 02:36 AM IST

Learn about summer

Summer is the season that comes after spring and before fall In many places, summer is the warmest time of the whole year During summer, sunrise happens earlier and sunset happens
30 Nov 2018, 12:39 AM IST

New method uses sunlight to purify water

Scientists have developed a simple process that can remove persistent pollutants in water using mere sunlight under the most basic conditions The researchers from Martin Luther Uni
28 Nov 2018, 01:09 AM IST

Learn about clouds and rain

Heat from the sun causes tiny drops of water to move from the ground up into the air When water molecules warm up, they change from a liquid into a gas and rise up into the air, or
27 Nov 2018, 12:06 AM IST

Learn about bees and ants

Do you know another name for bees and ants If you said insects, youre correct There are more different types of insects than any other organism on the planet Insects are creatures
23 Nov 2018, 11:45 PM IST

Batteries and electromagnets

Batteries were invented in the late 1700s, before much experimentation had been done with electricity An Italian scientist named Luigi Galvani discovered galvanismdirect electrical
21 Nov 2018, 01:32 AM IST

Color of light

What color do you think white light is It seems obvious, doesnt itwhite, of course Though it is called white because it seems to have no color, white light is in fact a mixture of
20 Nov 2018, 02:05 AM IST

The solar system lesson plan

This lesson for late elementary students grades 3 5 teaches about Earth and Space science using an inquiry approach It covers objects in the sky and changes in the earth and sky,
17 Nov 2018, 01:56 AM IST

Learn about Atoms and Molecules

What is everything really made of Questions like this have been asked for centuries, and scientists are continually trying to find the answer At one time scientists believed that t
15 Nov 2018, 11:50 PM IST

ISRO calls for global proposals to carry experiments on Venus mission

ISRO has invited proposals from the international scientific community to carry out novel experiments on its planned Venus mission, scheduled to launch in 2023, the space agency sa
13 Nov 2018, 01:10 AM IST

Gold nanoparticles used to treat prostate cancer for the first time

Scientists are using gold nanoparticles that act as tumourseeking missiles to target prostate cancer, in a firstofitskind clinical trial The nanoparticles or nanoshells, are made o
10 Nov 2018, 01:09 AM IST

New skin-like sensor maps blood-oxygen levels in body

US engineers have developed a new lightweight, thin and flexible sensor that can map bloodoxygen levels over large areas of skin, tissue and organs, potentially giving doctors a ne
09 Nov 2018, 03:04 AM IST

Indian, US satellites find black hole that spins near maximum possible rates

Scientists using data from Indias first dedicated astronomy satellite, AstroSat, and NASAs Chandra Xray Observatory have found that a black hole in the binary star system 4U 163047
02 Nov 2018, 02:43 AM IST

New laser technique to help develop efficient clean fuels

Scientists have developed a new laser technique that may help find sustainable ways to replace fossil fuels with more efficient clean energy
01 Nov 2018, 02:51 AM IST

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Build a solar car
Hans Classroom
Introduction to light