K–8 STEM
Distance Learning
Products
Back
Science Books & Kits
Teacher's Packs
ScienceWiz Club
Breakthrough Microscope
Activity & Party Kits
Games & Puzzles
Portals to Discovery
Course Purchasing Options
Distance Learning
Back
Free Course Previews
Classroom
Back
NGSS STEM Progressions
Teacher's Packs
Login
Play Games
Awards
Bonus
Back
Chemistry
Electricity
Energy
Inventions
Light
Public Service
Back
COVID-19
Climate Change
To Review -- From DNA to mRNA to Protein
Proteins are chains of Amino Acids
Video
Video