Pre-Algebra 1
What is mean in math?
Mean is the average of a set of numbers.
The length of a rectangle is 21 cm. The width of a rectangle is 9cm. What is the perimeter of the rectangle?
60cm
What is an observation?
Something that is seen with your own eyes and can be documented at a given time and place.
What is the formula of a water molecule?
H2O
List the 6 Kingdoms in organization?
Archaebacteria; Eubacteria, Protista, Fungi, Plantae, Animalia
What is the median in math?
The median is the middle number when numbers in a set after they are put in numerical order.
The length of a rectangle is 21 cm. The width of a rectangle is 9cm. What is the area of the rectangle?
189cm2
What is an inference?
An inference is a conclusion reached based on evidence and reasoning from observations.
What is the formula for carbohydrates?
C6H12O6
What is a eukaryote?
An organism with one or more cells with DNA in the form of chromosomes contained in a nucleus.
What is the mode in math?
The mode is the number that occurs most often in a set of numbers.
Solve: 3x+6=12
x=2
What is a prediction?
A prediction is when a scientist thinks something will happen based on observations and inferences.
What is a hydrogen bond?
An attraction between two atoms that already are bonded to others. One is a hydrogen the other has an electronegative atom, such as oxygen.
What is prokaryote?
A single-celled organism with no nucleus or organelles.
How do you find the mean of a set of numbers?
Add all the numbers in the set together then divide that sum by the amount of numbers in the set.
Solve: 32+4(8-5)/6=
29
What is an independent variable?
An independent variable that is not dependent on another variable. It is the "IF" part of a hypothesis. It is what you are predicting and changing.
What is the Equation for Photosynthesis?
6CO2+6H2O -> C6H12O6+6O2
Which of the 6 Kingdoms are prokaryotes?
Bacteria and Archaebacteria
Find the mean, median and mode for the following set of numbers.
1 2 5 4 9 5 8 6
Mean = 5.125; Median = 5; Mode = 5
Find the area of the triangle whose height is 5cm and base is 14cm.
A=70
What is a dependent variable?
A dependent variable is dependent on other variables and answers the "what" in a hypothesis. It is what you measure.
What is the equation for cellular respiration?
C6H12O6 + 6O6 -> 6CO2 + 6H2O
Name the four kingdoms that contain eukaryotes?
Protista; Fungi; Plantae; Animalia