Sun and earth
How many days are in earth's revolution
365
What are the two types of waves we have learned about
Longitudinal and transverse
A chart that organizes every element known on earth
periodic table
A force is a
push or pull
PPE stands for
personal protective equipment
An imaginary line that travels through the north pole and south pole
axis
Waves transfer what
energy
if something is more dense than water it will
sink
When two forces are pushing on an object in opposite directions it is
Balanced/equal force
In either one of Earth’s hemispheres, winter happens when the direction of Earth’s axis tilts that hemisphere
away from the sun
How many seasons does earth have and what are they?
4, summer , fall, winter, spring
What type of waves are perpendicular
transverse
which type of mixture is a combination of two or more substances that is not uniform in composition and can be separated
heterogenous mixture
Two magnets facing each other with the same pole will
repel
Do you subtract or add two forces acting on an object in the same direction
add
The name of the path earth takes around the sun
orbit
What types of waves are parallel
longitudinal
Three types of elements on the periodic table
metal, non metal and metalloid
Two magnets facing each other different poles will
attract
How long does it take earth to make one rotation
24 hours
An imaginary line that separates the northern and southern hemisphere
equator
Sound is what kind of wave
Longitudinal
What are the two types of changes matter can go through ?
Chemical change and Physical change
a contact force that two surfaces exert on each other when they push or rub against each other
friction
a law that states if one object exerts a force on another object, then the second object exerts an equal but opposite force on the first object
newton's third law