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WorksheetsScience: Chapter 1- Natural Cycles
Total questions: 23
Worksheet time: 19mins
Which of the following is not one of the elements most abundant in living things?
carbon
helium
oxygen
nitrogen
A pollutant released into the atmosphere is ______________.
photochemical smog
acid precipitation
an emission
a nodule
When precipitation gathers into a body of water, it is called _______________.
runoff
acid precipitation
photochemical smog
collection
Which process describes how plants make sugar from sunlight, water, and carbon dioxide?
nitrogen fixation
cellular respiration
detrification
photosynthesis
Air pollution can be caused by burning too many __________.
fossil fuels
emissions
nodules
legumes
Converting nitrogen in the atmosphere into a form that can be used by plants is called ____________.
nitrogen fixation
cellular respiration
dentrification
photosynthesis
The process in cells where oxygen & glucose create energy & carbon dioxide is called
nitrogen fixation
cellular respiration
dentrification
photosynthesis
Releasing nitrogen from the soil back into the atmosphere is called_________.
nitrogen fixation
cellular respiration
dentrificaiton
photochemical smog
the precipitation that flows over the surface of the soil
nodule
biogeochemical cycle
photochemical smog
runoff
a swelling on a plant root that contains nitrogen-fixing bacteria
nodule
runoff
photochemical smog
biogeochemical cycle
the cycling of chemical elements through living and nonliving parts of an ecosystem
runoff
photochemical smog
biogeochemical cycle
nodule
Which of the following hosts nitrogen-fixing bacteria in nodules on its roots?
a consumer
a legume
a decomposer
an emission
the cycling of chemical elements through living and nonliving parts of an ecosystem
runoff
biogeochemical cycle
photochemical smog
nodule
What are TWO effects on the ecosystem cutting down trees in a forest?
It causes a loss of nitrogen
It can cause air pollution
It can cause other plants to grow faster
It can cause too much carbon dioxide to build up
What letter indicates the microscope's stage?
A
G
H
I
What letter indicates the microscope's objective?
F
G
H
I
What letter indicates the microscope's fine adjustment knob?
B
C
D
G
What letter indicates the microscope's base?
D
E
H
I
What letter indicates the microscope's course adjustment knob?
B
C
E
F
What letter indicates the microscope's arm?
B
D
E
F
What letter indicates the microscope's stage clip?
B
C
G
H
What letter indicates the microscope's eyepiece?
G
H
I
A
What letter indicates the microscope's light source?
C
D
E
F
