You will learn about "Formation of Planet".
Have you ever seen "Floating rock"? as photo?
You will learn and think why and how?
*_________ is a type of extrusive volcanic rock,
produced when lava with a very high content of
water and gases is extruded (or thrown out of) a
volcano.
Vocabulary : Billions of years ago, Magma, Volcano, Extrude,
We will learn about '"Electrolysis".
Vocabulary : Hydrogen, Oxygen, Electricity,
Cathode, Anode, Electrolysis.
Water is a simple compound made from the two
elements hydrogen (H) and oxygen (O),
and each molecule of water consists of two
hydrogen atoms and one oxygen atom.
You will learn about "Movement of air molecules" with interesting experiment.
Vocabulary : Molecules of air, air pressure, push, pull, partial, vacuum
*When molecules of air heat up, they move far away from each other and take up more space.
When molecules of air cool down, they move closer together and take up less space.
Vocabulary : Density, Volume, Mass
The same amount of two different liquids will have different weights because they have different masses.
The liquids that weigh more (have a higher density) will sink below the liquids that weigh less (have a lower density).
