The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, human organism.
The atom is the basic building block for all matter in the universe.
All matter is made up of substances called Elements it's a substance that consists of only one type of atom for Example: oxygen All elements are made up of atoms. Atom is the smallest unit of element are made up of proton, neutron, and electron. |
 |
Science worksheets
FIRST TERM: Chemical Building Blocks
Lesson 1: What is a Quark in an atom?
Lesson 2: Cell parts and Cell organelles Functions
Lesson 3: The differences between plant cell structure and animal cell structure
Lesson 4: Composition of the human body
Organs and Systems of the Human Organism
Lesson 5: Five Vital Organs in the Human Body
Lesson 6: Circulatory System
Lesson 7: Circulatory System: The Heart
Lesson 8: Heart Conduction System: Cardiovascular system
SECOND TERM:
LESSON 9:
LESSON 10:
LESSON 11:
LESSON 12:
Lesson 1: What is a Quark in an atom?
Lesson 2: Cell parts and Cell organelles Functions
Lesson 3: The differences between plant cell structure and animal cell structure
Lesson 4: Composition of the human body
Organs and Systems of the Human Organism
Lesson 5: Five Vital Organs in the Human Body
Lesson 6: Circulatory System
Lesson 7: Circulatory System: The Heart
Lesson 8: Heart Conduction System: Cardiovascular system
SECOND TERM:
LESSON 9:
LESSON 10:
LESSON 11:
LESSON 12:
LESSON 13:
LESSON 14:
LESSON 15:
LESSON 16:
LESSON 15:
LESSON 16:
THIRD TERM:
LESSON 17:
LESSON 18:
LESSON 19:
LESSON 20:
QUIZ:
LESSON 21:
LESSON 22:
LESSON 23:
LESSON 24:
LESSON 18:
LESSON 19:
LESSON 20:
QUIZ:
LESSON 21:
LESSON 22:
LESSON 23:
LESSON 24:
