
Public learning track
Human Body Systems and Sensory Organs
1st Grade · Science · Open Global Science
11 lessons
Goal
Identify major human body systems and sensory organs and explain how they work together to keep us moving, breathing, and thinking.
11 lessons
0 of 11 done
- 1Our Skeletal System: Bones and JointsUp nextStart
- 2Our Muscular System: Power and MovementPremiumNot started yet
- 3The Digestive System: Breaking Down Food and Absorbing NutrientsNot started yet
- 4Our Circulatory System: Heart and Blood VesselsNot started yet
- 5Our Respiratory System: Lungs and BreathingNot started yet
- 6Our Excretory System: Kidneys, Bladder, and SkinNot started yet
- 7Our Nervous System: Brain, Spinal Cord, and NervesNot started yet
- 8The Five Senses and Their Specialized OrgansNot started yet
- 9How Our Eyes and Vision WorkNot started yet
- 10How Our Ears and Hearing WorkNot started yet
- 11How Body Systems Work Together During ExerciseNot started yet
Standards Covered
- OGS.2.LS.7Open Global Science Standards 2026™ · Science · Level 2 / Grade 1 (Age 6) · Grade 1Identify and locate external body parts and major internal body systems (skeletal, muscular, digestive, circulatory, respiratory, excretory, nervous, and sensory), describing their primary functions and interactions.
- OGS.2.LS.8Open Global Science Standards 2026™ · Science · Level 2 / Grade 1 (Age 6) · Grade 1Demonstrate understanding of essential personal hygiene, nutrition, balanced diet, physical exercise, rest, sensory organ protection (sight and hearing), disease prevention, and safe habits to maintain health and well-being.
Curriculum Framework
1st Grade · Science · Open Global Science
1
10 lessons
Living Things, Life Processes, and Classification
Identify life processes that define living organisms and classify plants and animals using observable traits.
2
11 lessons
Plant Parts, Functions, and Growth
Examine the anatomy of flowering plants and explain how each structure supports survival, nutrition, and reproduction.
3
10 lessons
Animal Body Parts and Physical Adaptations
Analyze animal body structures and physical adaptations across land, air, and aquatic environments.
4
11 lessons
Life Cycles, Growth, and Offspring Traits
Sequence and compare the life cycles of insects, amphibians, reptiles, birds, mammals, and flowering plants while tracking inherited traits.
5
11 lessons
Habitats, Food Chains, and Ecosystems
Model terrestrial and aquatic habitats, construct food chains from the Sun to top consumers, and describe ecological balances.
6
8 lessons
Microorganisms, Fungi, and Nature Safety
Discover the roles of fungi and microbes in decomposition and nutrition, and apply safety rules around poisonous plants and venomous creatures.
7
11 lessons
Human Body Systems and Sensory Organs
Identify major human body systems and sensory organs and explain how they work together to keep us moving, breathing, and thinking.
8
10 lessons
Healthy Habits, Nutrition, and Wellness
Apply practical habits of hygiene, nutrition, exercise, sleep, sensory organ protection, and disease prevention for lifelong health.