What is the control center, directs activities within the cell
100
In the human body, how would you describe plasma?
The liquid part of blood, made up of mostly water.
100
This is the process of turning water (as in a lake) into water vapor (as in "humidity").
What is evaporation
100
These are positively charged particles found in the nucleus of an atom.
What are protons?
100
The first step of the scientific method is to ask a testable question. Name the 2nd step.
Form a hypothesis! (with reasoning, of course)
200
What is the job of the mitochondrion?
What is to make energy for the cell.
200
What is the major organ of the respiratory system?
the lungs
200
This is the source of all energy for the water cycle.
the sun
200
This is the state of matter where molecules are free flowing, highly energetic, and fill the space that they are given.
What is gas
200
The amount of space an object takes up is known as it's _______________.
What is VOLUME
300
In a plant cell, what does the vacuole do?
Stores water, which gives the plant it's shape.
300
Where in the lungs does gas exchange occur?
In the alveoli (or air sacs)
300
Gas -------> Liquid is called ___________________(this happens in the clouds)
What is condensation
300
On the pH scale of 0-14, name the neutral pH number.(meaning not acidic or basic, pure water has this pH)
What is 7
300
A triple beam balance measures the _____________ of an object. The units that mass is measured in are called _________________.
What is MASS, GRAMS
400
True/False:
Animal cells have a cell wall and a cell membrane
False
400
This is the name of the system made up mostly of bones, it gives body it's form.
What is skeletal system.
400
Name 2 places that water collects on the earth.
Oceans, smaller bodies of water lakes or ponds, underground (aquifers)
400
Any pH in the range of 0-6 falls into which category?
1-Acids (like vinegar, lemon juice, or chyme) OR
2-Bases (like baking soda, sodium bicarbonate, or sodium hydroxide)
What are ACIDS
400
DENSITY is a measure of _________________ divided by __________________.
MASS DIVIDED BY VOLUME, OR
mass/volume
500
Which organelles do plant cells have that animal cells do not?
chloroplasts & cell walls
500
Describe how the cardiovascular system (heart/blood/blood vessels) works with the digestive system to get nutrients to the cells.
Nutrients are absorbed into the bloodstream through the villi in the small intestine and delivered to the cells through the blood.
500
Name 3 forms of precipitation
What is rain, snow, sleet, hail
500
The horizontal rows on the periodic table are called _________________________, while the vertical columns are called ______________________.
PERIODS, GROUPS
500
1,000 meters is equal to:
a) a centimeter
b) a millimeter
c) a decimeter
d) a kilometer