Unit 4 - Matter & Energy

Use these flash cards to study!

Test Friday, June 9: Matter and Energy

Review for the Test:

• Energy is made of different wavelengths.  Radio waves have the longest wavelength.  Gamma rays have the shortest.  Visible light has medium wavelength. 

• Atoms are made of protons, neutrons, and electrons. 
• Protons and neutrons make up the nucleus of the atom.
• The type of atom is determined by the number of protons in the nucleus.
• The Periodic Table organizes all of the types of atoms (elements) into periods and groups that share properties.
• Know where the Noble Gases are. Noble gases don't react with other elements.
• Know where the Halogens and Alkali Metals are. They are very reactive with other elements and combine easily to make compounds.
• Elements are substances that are made of only one type of atom. For example: all the types of atoms in the periodic table, like Hydrogen, Helium, Lithium, Oxygen, Gold, Silver
• Compounds are made of more than one atom.  For example: Water and hydrogen peroxide

Watch the videos below:
What are physical and chemical properties?

What are physical and chemical change?

Homework Links

Extra Credit for Quarter 4:

1. Read a New York Times Science article.  Write a 5-sentence summary.  Turn it in to the pink bin in class.  Deadline June 16.  Each article earns extra homework credit.

2. Learn the Periodic Table Song and sing it for the class.  Deadline: June 19.
3. Go to the NYU Science Festival on Sunday, June 4.

Here's the slower version.