Experiments
Why can’t there be more than one changed variable?
Because then we won’t know what caused the reaction
What is quantitative data?
Data that uses numbers and objects
What is a theory?
A hypothesis supported by a large body of scientific evidence
Describe a cell
A cell is: The most basic unit of life
What are atoms made of?
Subatomic particles like protons, neutrons, and electrons
What is the control group?
The standard or normal group that has no changes
What is qualitative data?
Data that uses observations and is subjective
What is a scientific law?
Ideas that are known to be true such as gravity
What is an observation?
Something that is objective, has no opinion and is based on the five senses
Where are protons and neutrons located?
In the nucleus of an atom
What is the experimental group?
The group that has ONE changed variable
When graphing experiments, which axis is used for the Independent variable?
X-Axis
What is an acronym for unit conversions?
King Henry Died By Drinking Chocolate Milk
What is matter?
Anything that has mass and occupies space
Where are electrons located?
In the surrounding electron cloud of a cell
What is the independent variable?
The variable that is changed
When graphing experiments, which axis is used for the dependent variable?
Y-Axis
What is a constant?
A variable that stays the same throughout the comparing experiments
What is an inference?
A subjective guess on what will happen based on previous studies
What are the electrons on the outermost energy level/shell?
Valence electrons
What is the dependent variable?
The outcome of that change from the I.V.
What is science?
A study of the world based on experiments and supported by evidence
What are the characteristics of living things?
They have to have organization, they reproduce, they have genetic code (DNA), they grow and develop, they obtain and use energy, they respond to the environment/ stimuli, and they maintain internal balance/ homeostasis
What are the 6 necessary elements for life?
C,H,O,N,P,S
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, and Sulfur
What does the period number stand for on the periodic table?
How many energy levels an atom has