Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Transcript of chemistry
how is chemistry used to help people?
chemistry can be used to help people by making medicines to fight or treat diseases.
matter is Atoms and molecules that are around you .matter is anything that haves mass, mass is anything that take up space
The four types of matter are solids,liquids,gases and plasmas
gas assumes the shape and volume of its container
liquid assumes the shape of the part of the container which it occupies
solid retains a fixed volume and shape
do not change the chemical makeup su bstance or any change NOT involving a change in the substance
example :Ice melting is a change from a solid to a liquid and the substances maintain the properties of water because the molecules never change.
chemical changes are when the bonds between atoms in a molecule are created or destroyed changes .But for physical state is caused by environment changes like temperature, pressure, and other physical forces.
Example: rust of iron , baking a cake