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+2 votes
4 lessons
In 4-6 by Magnus Willner Guru (6.7k)  

Covid19

Coronavirus disease 2019 (COVID-19) is a contagious disease first identified in Wuhan, China, in December 2019. The disease has since spread worldwide, leading to an ongoing pandemic. The virus that causes COVID-19 spreads mainly when an infected person is in close contact with another person. Small droplets and aerosols containing the virus can spread from an infected person's nose and mouth as they breathe, cough, sneeze, sing, or speak.

Most common symptoms: fever, dry cough, tiredness

Less common symptoms: aches and pains, sore throat, diarrhea, conjunctivitis, headache, loss of taste or smell, a rash on the skin, or discoloration of fingers or toes.

COVID-19: A dashboard for exploring historical data about the virus COVID-19  Dashboard Powered By Klipfolio



+2 votes
2 lessons
In 4-6 by Tanya van den Berg Guru (6.5k)  

Resources:

Both resources and energy allow us to flourish on planet Earth. But, what exactly are resources, and why are they so important? Check out this video: 

Energy:

The simplest definition of energy is "the ability to do work". Energy is how things change and move. It's everywhere around us and takes all sorts of forms. It takes energy to cook food, to drive to school, and to jump in the air. Energy consumption just means how much energy we are using each year to power our houses, factories, businesses and vehicles.

Different forms of Energy
Energy can take a number of different forms. Here are some examples:

  • Chemical - Chemical energy comes from atoms and molecules and how they interact.
  • Electrical - Electrical energy is generated by the movement of electrons.
  • Gravitational - Large objects such as the Earth and the Sun create gravity and gravitational energy.
  • Heat - Heat energy is also called thermal energy. It comes from molecules of different temperatures interacting.
  • Light - Light is called radiant energy. The Earth gets a lot of its energy from the light of the Sun.
  • Motion - Anything that is moving has energy. This is also called kinetic energy.
  • Nuclear - Huge amounts of nuclear energy can be generated by splitting atoms.
  • Potential - Potential energy is energy that is stored. 

Energy is taken from two types of energy source:

  • Renewable energy sources = resources that can be easily replaced or renewed (will not run out – sustainable). These include- Hydro Electric Energy, Wind Energy, Solar energy, Geothermal energy, and Biofuels
  • Non-renewable energy sources= resources that can be used up and cannot be replaced (will run out). These include – Coal energy, Natural Gas energy, Oil energy, and Nuclear energy.


+2 votes
3 lessons
In 4-6 by Tanya van den Berg Guru (6.5k)  

The World's Oceans:

The five world oceans are the Pacific Oceanthe Atlantic Oceanthe Indian Ocean, the Southern Ocean, and the Arctic Ocean.

Check out this YouTube video to learn more about each Ocean: 

The Water Cycle:

Ready to learn more about the Water cycle? Check out this lesson: https://www.canva.com/design/DAEA5Y0tpXw/Cq53LbS1XqiNRE3SUBGd1A/view



+2 votes
1 lesson
In 4-6 by Asher Streets Rockstar (4.5k)  

Informative video of the matter water:

Thanks to Smile and Learn 



+2 votes
1 lesson
In 4-6 by Asher Streets Rockstar (4.5k)  

Watch this explaining video and take notes:



1, Rewrite your notes

2, Learn what you wrote

3, Try to find 5 examples of acids and alkaline in your home.

4, Arrange them according to the pH scale

Thanks to MooMooMath and Science



+2 votes
2 lessons
In 4-6 by Asher Streets Rockstar (4.5k)  

11 Fascinating Chemistry Experiments



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