Rotation is
and how long does it take for Earth to rotate?
the spinning motion of a planet on its axis
it takes 24 hours
100
What is the difference between mass and density?
What is the formula for density?
mass is a measurement of how much matter is in an object
density is how much mass is contained in a given volume
mass/volume
100
What is the force called that holds together an atom?
chemical bond
100
A hypothesis always has to have what?
if and then
100
What tool would you use to measure an irregular object?
graduated cylinder or triple beam balance
200
What causes the phases of the moon?
Changes in the relative positions of the moon, Earth and Sun
200
You can find the volume of an irregular object by
using the displacement method
200
What is a quantitative observation?
What is a qualitative observation?
Quantitative = how much, numbers
Qualitative = using your senses - how it looks
200
What variable is this: I will use the same type of plants, same amount of soil, same place in the sun and the same type of water for my experiment.
Control
200
What measurement would you use for a triple beam balance?
What measurement would you use for a graduated cylinder?
grams
milliliters
300
What is a revolution?
How long does it take for the earth to revolve?
The movement of an object around another object
One year
300
What is the difference between a regular object and an irregular object?
A regular object can be measured with a ruler or formula and an irregular object cannot!
300
What are the parts of an atom?
What are the charges of the parts of an atom?
nucleus
proton - positive
neutron - neutral
electron - negative
300
If I am watching 3 plants grow for my experiment and I see that one is growing faster than the others, what type of observation is this?
quantitative
300
What would happen to the density of a sponge if it was cut in half?
nothing!
400
Why does the Earth have seasons?
Earth's axis is tilted as it moves around the sun
400
What are the 3 rules for reading a graduated cylinder?
Read at eye level
Read bottom of meniscus
Put it on a flat surface
400
What is the difference between a physical change and a chemical change?
Give one example of each kind of change.
physical change = a change in a substance that does not change its identity
ripping paper
chemical change = a change in which one or more substances combine to form new substances
burning wood
400
What part of the scientific method is this?
When I analyze my data
interpreting the data
400
List the 5 steps of the scientific method
pose a question
make a hypothesis
procedure
interpret data
conclusion
500
In a solar eclipse what is the order of the moon, Earth and the Sun?
In a lunar eclipse what is the order of the moon, Earth and the Sun?
sun, moon, Earth
sun, Earth, moon
500
What is the density of water?
What would happen to an object weighing 4.5 grams?
What would happen to an object weighing .25 grams?
1 g/mL
it would sink
it would float
500
What are the 3 states of matter?
For each state of matter, what is the volume and shape?
solid, liquid and gas
solid = definite volume and definite shape
liquid = indefinite and definite
gas = indefinite and indefinite
500
Name and explain the dependent, independent and control variables in an experiment.
dependent - the procedures that stay the same
independent - what changes in the experiment
control - using the same equipment, etc.
500
What unit of measurement would you use if you were measuring a wall?
What unit of measurement would you use if you were measuring the distance to your house from the school?
How would you measure a binder clip?