Science involves observing, studying, and experimenting to understand nature. Scientists investigate, plan experiments, observe results, and test theories. There are many branches of science, including physical, earth, and biological sciences. Science and technology work together, with science exploring nature through experimentation and technology applying scientific knowledge to improve human lives. The environment includes all surrounding factors that affect living things, and consists of both biotic elements like plants and animals as well as abiotic elements such as air, water, and soil. Ecosystems link biotic and abiotic components through energy and nutrient cycles.

1. Science and Environment

2. What is Science?
Science is observing, studying and
experimenting to find the nature of
things.

3. Scientists do many things !
Scientists:
– Investigate
– Plan
experiments
– Observe
– Test results

4. The Nature of Science
 Vocabulary:
– Science: a system of knowledge based on facts or principles
– Technology: the application of science to meet human needs
– Scientific theory: a tested, possible explanation of a natural
event
– Scientific law: a summary of an observed natural event

5. Why a Scientist Performs Experiments
1. Find out something new about the natural world.
2. To explain something that is already known.
3. To check the results of other experiments.
4. To test predictions of current theories.

6. Science Has Many Branches
Science
Natural
Science
Social
Science
Biological Science:
The science of the
Living world
Physical Science:
The science of
Matter and energy
Earth Science:
The science of
Our planet
Psychology Sociology
Examples:
Botany, zoology,
ecology
Examples:
Physics and
chemistry
Examples:
Geology and
meteorology

7. Branches of Science
Branch of
Science
Area of Study
Social science Human
behavior
Natural science How the whole
universe
behaves
Biology Living things
Botany Plants
Zoology Animals
Ecology Balance in
nature
Physical
science
Matter and
energy
Chemistry Matter and its
changes
Physics Forces and
energy
Geology Earth’s
physical
nature and
history
Meteorology The
atmosphere
and weather

8. Science and Technology
 They work together and depend on one another.
 Science: observing, studying, & experimenting to
find the nature of things
 Technology: using science to make human lives
easier
– Computers, cell phones, cars, answering machines

9. ENVIRONMENT

10. What is Environment ?
The environment is something you are very
familiar with. It's everything that makes up
our surroundings and affects our ability to
live on the earth—the air we breathe, the
water that covers most of the earth's
surface, the plants and animals around us,
and much more.

11. COMPONENTS OF ENVIRONMENT

13. Abiotic vs Biotic environment

14. Ecosystem
An ecosystem is a community of
living organisms in conjunction with
the nonliving components of their
environment, interacting as a
system. These biotic and abiotic
components are linked together
through nutrient cycles and energy
flows.