7th Grade Science Fall
Semester Exam Study Guide
• Photosynthesis
• Flow of Energy in an ecosystem
• Work and No Work
• Watershed
• Biodiversity
• Ecological Succession
7.5A Recognize that radiant energy from the Sun
is transformed into chemical energy through the
process of photosynthesis.
• Draw a diagram to illustrate the process of
photosynthesis
• Label the components of the process – include
energy transformation
7.5A Recognize that radiant energy from the Sun
is transformed into chemical energy through the
process of photosynthesis.
• In what ways is energy transformed within
the process of photosynthesis?
Word Equation:
Six molecules of water plus six molecules of carbon
dioxide, using light (radiant) energy and chlorophyll,
produce one molecule of sugar (chemical energy) plus
six molecules of oxygen.
7.5C Diagram the flow of energy through living
systems, including food chains, food webs, and
energy pyramids.
• Draw and label the flow of energy in a food web and
food chain.
7.5C Diagram the flow of energy through
living systems, including food chains, food
webs, and energy pyramids.
• Define consumer, producer, and decomposer
7.5C Diagram the flow of energy through
living systems, including food chains, food
webs, and energy pyramids.
• How does a food chain relate to an energy
pyramid?
7.7A Contrast situations where work is done with
different amounts of force to situations where no work is
done such as moving a box with a ramp and without a ramp,
or standing still.
• Define force
7.7A Contrast situations where work is done with
different amounts of force to situations where no work is
done such as moving a box with a ramp and without a ramp,
or standing still.
• Define work
• What is the formula for work?
• Understand how to solve problems
7.8C Model the effects of human activity on
groundwater and surface water in a
watershed
• Define groundwater
Water that fills the
cracks and spaces
in underground
soil and rock layers.
7.8C Model the effects of human activity on
groundwater and surface water in a
watershed
• Define surface water
The water found on Earth’s
surface in places like
lakes, rivers, reservoirs,
and the ocean
7.8C Model the effects of human activity on
groundwater and surface water in a
watershed
• Define watershed
A Watershed is an area of land where
all of the water that is under it, or
drains off of it collects into the
same place (e.g. The River).
https://www.youtube.com/watch?v=f63pwrMXkV4
http://www.montgomerycountymd.gov/dep/water/watershed.html
What is a watershed?
7.8C Model the effects of human activity
on groundwater and surface water in a
watershed
Water Conservation:
• Any beneficial
reduction in water
use, loss or waste
• Water
management
practices that
improve the use of
water resources to
benefit people or
the environment.
7.8C Model the effects of human activity
on groundwater and surface water in a
watershed
7.8C Model the effects of human activity
on groundwater and surface water in a
watershed
7.8C Model the effects of human activity
on groundwater and surface water in a
watershed
7.8C Model the effects of human activity on
groundwater and surface water in a watershed
7.10B Describe how biodiversity contributes to
the sustainability of an ecosystem
Define Ecosystem
An ecosystem includes all of
the living things in a given
area, interacting with each
other, and also with their
non-living environments
Living – Biotic components
(plants, animals and
organisms)
Nonliving – Abiotic
components (weather, earth,
sun, soil, climate,
atmosphere).
Pond Ecosystem
7.10B Describe how biodiversity contributes to
the sustainability of an ecosystem
• Define biodiversity
The variety of species
that live in an ecosystem
• How does diversity
(biodiversity) affect
ecosystems?
Biodiversity allows for
ecosystems to adjust to
disturbances like extreme
fires and floods.
7.10B Describe how biodiversity contributes to
the sustainability of an ecosystem
• How different environments support varieties of
organisms
Biomes
• How Do Environments Support Populations?
The place where an organism lives is called its habitat.
The kind of soil, amount of water, climate, and kinds of
plants determine which organisms can live in a habitat. An
environment supports a population by providing all the
necessary conditions for organisms to survive, such as
food, water, and space. A small habitat is called a
microhabitat.