Transcript Jeopardy

Static
Electricity
Physical
and
Chemical
Changes
Our Solar
System
Food Webs
and Chains
Carbon
& Nitrogen
Cycles
Community
Interactions
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What is Static
Electricity?
Static electricity is
stationary electrical
charges
Give three
examples of
how to charge
an object.
1. Charging by
induction
2. Charging by
friction
3. Charging by
conduction
What is
charging by
friction?
Charging by friction is
when you rub two
materials together and
one has a stronger hold on
electrons than the other,
thereby charging the two
objects
What are
conductor’s
and
insulator’s?
A conductor is a
material that allows
electrons to move
easily through it.
An insulator is a
material that does not
allow electrons to
move easily through it.
What happens when
a neutral object
comes into contact
with a charged
object?
A transfer of charges takes
place and the neutral object
becomes charged.
What two types
of properties
are there?
Qualitative
and
Quantitative
What is the difference
between a Chemical
property and a
physical property?
Chemical changes are changes that cannot be
undone and involve a chemical reaction.
i.e.. Color, smell, energy produced
Physical changes are changes that can be
undone.
i.e.. Change of state, shape, size
What type of change is
this?
An egg is placed in
boiling water until it
becomes a hard-boiled
egg.
It is a chemical change because
it cannot be undone
If two, clear, solutions are
mixed with each other, and
a solid is formed at the
bottom of the container,
what type of change is this?
Chemical change
because in order for a
solid to be formed, a
chemical reaction must
take place.
If a book was ripped in
half and then placed in a
fire, what type(s) of
changes would have
happened
Both chemical and physical
changes.
The book being ripped is an
example of a physical change
and the burning is a chemical
change
How many planets
are in our solar
system?
Only 8
(remember, Pluto is
not a planet)
What is a
Heliocentric solar
system?
It is a solar system
where the sun is the
centre
(planets orbit around sun)
What is a
Geocentric solar
system?
It is a solar system
where the earth is the
centre
(planets orbit around earth)
What is a comet?
A comet is a large block
of ice orbiting around a
celestial body.
What does a
Herzsprung-Russel diagram
show?
(HR diagram)
It shows the organization of
stars organizing them by
brightness and temperature
What is a food
chain?
A sequence of animals
showing the transfer of
energy.
What is a food
web?
A food web is a
representation of feeding
relationships within a
community.
What percent of
energy is
transferred through
each tropic level?
10%
Out of the following, which
is a primary consumer:
Lion, Wolf, Deer, Grass
Deer
Where does ever
food web start?
With the
sun
Give two ways that
Carbon enters the
atmosphere
1. Combustion of fuels
2. Respiration
3. Diffusion
What two steps in the
carbon cycle lead to the
creation of fossil fuels?
1.Death and decay
2.Carbonification
What is the main way
nitrogen is circulated
throughout it’s cycle?
Bacteria
What two ways can
nitrogen leave the
atmosphere?
1. Precipitation
2. Nitrogen fixing bacteria
Why are the CO2 levels
in the atmosphere
rising?
They are rising because
industries are using more
fossil fuels and that causes
more carbon to be put into the
atmosphere.
What is mutualism?
Where two animals
interact to benefit each
other
What is
commensalism?
Where one animal
benefits from another,
which is unaffected.
If a honey bee takes
pollen from a flower,
what type of
interaction is this?
Mutualism
Honey bee is able to make honey
Other flowers are able to be
polinated
What is
parasitism?
One organism benefits
while another is harmed
What is the difference
between Predation and
Parasitism?
There is no difference.
They both mean that
one organism benefits
while another is
harmed.
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What is current
electricity?
The constant flow of
electrons
What is a series
circuit?
A series circuit is: a
circuit in which the
electrons only have
one path to follow
What is a
parallel circuit?
A parallel circuit is:
A circuit in which the
electrons have two or
more paths to follow
What are the benefits
for a parallel circuit
over a series circuit?
1. If one light bulb goes out,
the rest of the circuit stays
on.
2. The electrons are equally
shared throughout the
circuit.
Which type of circuit
would be better used
for Christmas lights?
Parallel since if one bulb
goes out, you don’t have
to search the entire wire
for the one burnt out
bulb.
What is the chemical
symbol for Sodium?
Na
If an element has a
mass of 45 and a proton
number of 24, what is
the neutron number?
45-24=21
Which of the following
is the symbol for
Calcium: Ca, C, Cs
Ca
If an element has a
proton number of 16,
and an atomic mass of
30, what is the atomic
number?
The atomic
number is 16
What are three of the
noble gases?
Helium (He), Neon (Ne),
Argon (Ar), Krypton
(Kr), Xenon (Xe), Radon
(Rn)
What is the chemical
formula is you had two
phosphorus atoms and
three magnesium
atoms?
Mg3P2
What is an ionic
bond?
An ionic bond is the
bond between a metal
ion and a non-metal
ion.
What would the
chemical formula be if
+1
-3
you had K and N
K3N
What are the ionic
charges on Helium
and Neon
There are no charges
on helium or neon
because they are
non-reactive.
What is the chemical
formula if you had
+1
ammonia (NH3) and
-2
Dichromate (Cr2O7)
(NH3)2Cr2O7
What are three
examples of star
classifications?
Black dwarf, white
dwarf, neutron star,
supergiant, gas giant,
red giant, etc.
What happens when a
supergiant star dies?
It causes a supernova
explosion and
becomes either a
black hole or a
neutron star.
What is a nebula?
A nebula is a vast
cloud of dust that
gives rise to new stars
What is a
binary star?
A binary star is a pair
of stars that are
orbiting each other.
How is the red
shift of a star
detected?
It is detected by
looking at the stars
spectra and the light
is shifted towards the
red end of the
spectrum
What number is the
atomic mass?
The smallest
number
What number is the
atomic weight?
The largest
number
How do you find the
number of neutrons of
an element?
Atomic weight – Atomic number
What group are the
noble gases found in
Group 18 (8)
How many different
patterns are there in the
periodic table?
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Define: Decomposers
Organisms that break down
organic matter
What is the definition of
ecosystem
Interacting organisms
and their environment
What is the definition of
population
The number of
organisms of the same
species
What is the definition of
community
An area composed of
several populations
What is the definition of
“niche”
An organism’s role in an
ecosystem