Question and Answer
Samples and Techniques
What is a pure substance
that cannot be broken down
into simpler substances?
A substance made of 2 or more elements is
a compound.
Element, compound or
mixture?
water
Would XY represent an element, compound
or mixture?
Each capital letter represents an element.
Since XY are touching it represents
they are chemically combined.
A element is a non-pure substance.
Would Xy represent an element, compound
or mixture?
Each capital letter represents an element.
Since X is the ONLY capital letter, it
represents an element.
Element, compound, or
mixture?
Oxygen
Compounds can be broken down into
elements.
Which element makes up most of
Earth’s atmosphere?
It makes up 78% of the atmosphere
Which elements and their percentages
make up the Earth’s atmosphere?
Nitrogen 78%
Oxygen 21%
Other 1%
What elements make up the Earth’s
crust?
Iron 35%
Oxygen 30%
Silicon 15%
Magnesium 13%
Nickel 3%
Other 4%
What is a substance that has two or
more different elements chemically
bonded together?
How many different elements are in
C6H12O6 + 6O2
6CO2 + 6H2O
26- 6 carbon, 12 hydrogen, 18 oxygen atoms
4- sugar, oxygen, carbon dioxide, and water
3- carbon, oxygen, and hydrogen
52- add all the numbers together
19- count only the coefficients
Which substances are examples of
compounds?
1 CO2 3
S
2 Co 4 KCl
What are the icy masses that have an
elliptical orbit around the Sun?
Made of water, carbon dioxide, ammonia,
dirt and rocks, carbon based matter.
Which celestial body is the center of our
solar system, around which every planet
orbits?
The Galilean moons include Callisto,
Europa, lo, and Ganymede.
What characteristics best describe the
inner planets?
Inner planets are the planets
between the sun and the asteroid
belt.
Gas giants are the outer planets of our
solar system.
The Sun is a __.
Star
Planet
Gas Giant
Comet
Asteriod
What celestial object orbits the Earth?
The Sun is a star.
Smaller celestial objects that orbit planets
are _____________?
What movement is shown in the
picture?
What do we call the four natural
satellites around Jupiter?
Match the term with the descriptor
1. Inner planets
a. Space rock hits Earth
2. Outer planets
b. Have a tail
3. Comets
c. Rocky
4. Asteroids
d. Gas giants
Meteorite
e. Float in belt
A _________ is a celestial object with
a small mass and an elliptical orbit.
Which are objects in our solar
system?
asteroids
Sun
Moons
planets
All the above
What is the purpose of the
International Space Station?
To provide a place for scientists to do experiments
To provide a cooling place for the aircraft
To provide, collect and develop films
To provide a place for scientist to do lunges
To provide a place for scientists to make satellites
Match the planet to the characteristic
Uranus
Closest to the sun
Saturn
Rotates clockwise
Venus
Spins on its side
Mars
Ring of rocks and debris
Mercury
Two moons
Match the items on the left to the items
on the right.
Sodium
CO2
Hydrogen
Co
Cobalt
Na
Water
H
Carbon dioxide
H2O
What is the formula for DENSITY?
Remember that the TOP dog goes inside
the box (dog house) Ruff ruff!!
A natural satellite is a body in space that
revolves around a more massive body.
The equipment astronomers use to study
our solar system.
An equipment that has actually flown
through, taken pictures, and studied most
of our solar system
What is gravity?
What affects the strength of the
gravitational pull on an object?
Gravity and motion control the orbit of a
planet.
Convection is the transfer of heat in a
fluid (liquid or gas) by the movement of
heated particles (currents).
Transfer of heat by direct contact. Heat
flows from the warmer object to the
colder object.
Metals are good conductors.
Solids are better conductors of heat than
liquids or gases.
Transfer of heat energy by electromagnetic
waves (rays) is __________________.
This is how the sun’s energy gets to earth.
When you stand near a fire and warm
yourself, most of the warmth you feel
has been transferred by radiation.
What are indicators of a chemical change?
Example: Rust, baking, or burning
Types of physical changes are shape, color
or size.
Which are characteristics of Metals?
Shiny
Malleable and ductile
Are good at conducting electricity
Most are solid at room temperature
All of the choices
Thermal energy always moves from an
object of lower temperature to an object
of higher temperature.
Poor conductors of heat/electricity, brittle
and dull (not shiny) of characteristics of
__________.
Remember: nonmetals are on the right
side of the periodic table
Metalloids have both characteristics of
both metals and nonmetals.
A chemical change is a change in the
chemical bonds of an object that results in
a new substance.
The Sun is the original source of energy.
C
O
N
V
E
R
S
I
O
N
Mechanical
Mechanical
Heat energy can change to the motion of a train or
rocket, cause the mercury in a thermostat to rise or
fall, and push the steam through the small opening
of a kettle to make it whistle.
Mechanical
Sound
Radiant
Electrical
Chemical energy can be transformed to make a candle
burn and a battery power your MP3 player.
The chemical energy in our food allows us to move from
class to class and the chemical energy in fuel lets the
rocket take off.
Mechanical
Mechanical
C
O
N
V
E
R
S
I
O
N
Heat
Light
A hair dryer or a toaster can transform electrical energy into heat
energy. The friction from the wires or the air allows electrical energy
to be changed into light energy in a lightbulb or lightning. Finally, a
telephone takes in electricity and changes it into sound energy.
Light
Heat
Sound