Day: May 18, 2023

molecules and atoms.

LI 5: We are learning that everything is made out of different combinations of atoms and that different materials have different properties.
Everything is made up of different combinations of these atoms. For example, water molecules are made up of two hydrogen atoms and one oxygen atom. That is why water is also called H2O.

What is the difference between a molecule and an atom?

A molecule is made up of different types of atoms like water molecules. It needs two hydrogen atoms and one oxygen atom.

Atoms also come in different sizes, depending on how many electrons they have. An oxygen atom is a lot (16 x) larger than a hydrogen atom. Draw a picture (and take a photo) or create an image on google draw of a water molecule H20. It contains 2 hydrogen atoms and one oxygen atom. Example = this is a carbon dioxide atom.
o==O==0 water molecule.
H O H
https://serc.carleton.edu/integrate/teaching_materials/water_science_society/student_materials/838link.
Different materials have different properties. For example, they have
different melting and boiling points, different mass (weight), density and some are stronger than others. This is caused by their molecular structure.

We need to keep this in mind when designing different products. For example, we make saucepans out of metal because they won’t melt on our stoves. However, if we tried to place a plastic pan on the stove it would melt because it has a lower melting point. We can create strong metal by creating a metal alloy (by combining one type of metal with another metal or element). These alloys can be stronger than the metal on its own————————————–


today my class was leaning  about the difference between atoms and molecules.

sSSUUUnnnN

Create:

Create a poster for Team 4 students filled with cool fun facts about the sun. 

 

Remember to use the text and video on the site to help you with information.

 

Find some cool free images to make your poster appealing to your reader.

 

The sun is very hot. The sun is very big.