Browse skills per subject or grade. Click skills for quiz and more lessons

How fast can you greenmark all skills in a subject?
+3 votes
4.5k views
In 4-6 by Rockstar (4.5k)  
retagged by

2 lessons

+3 votes
by Guru (5.9k)  

Atom is a basic buidling block of matter. This doesn't mean that there are no smaller particles than atom, but only atom is stable enough to exist on its own indepently or in a combination with other atoms in a molecul.

This very nice video gives more detailed info on the topic of atoms.

What is a molecul? A molecul would be a combination of different atoms in differen numbers and variations, bonded together. A good example for this is water with a chemical formula H2O, meaning the molecul of water is made of two atoms of hydrogen (H) and one atom of oxygen (O).



0 votes
by Rockstar (4.5k)  
Let's explore even more about atoms!

How were atoms first imagined, and how did our understanding of them change over time?

Where are the electrons...or can we even know?...

HIGHER GRADES FASTER
Structured top content for the top ten skills.

QUIZ AND MORE
Click the skill title to see all lessons and a quiz. Complete a skill with a quiz or checkmark it manually.

1 SKILL A DAY
Gain knowledge and earn badges in just 10 minutes a day, delivered straight to your inbox. Get started

LIVE COURSES
Looking for more support? Sign up for a 10 week online course with one session every week DISCOUNT
Get "5 pay for 1" family discount, or ask for school discount here.




SKILLS AND LESSONS

Palo Alto, San Francisco, USA
Finland - Sweden - Belgium - South Africa



              





GET A POSTER


Get a skill overview poster and see all skills.
Scan a subject qrcode with your phone and get directly to that subject.
As a customer, just contact us for delivery.



...