The Scientific Method
What is a Dependent Variable?
Something you Measure
What are the three main subatomic particles?
Protons, Neutrons, Electrons
How many Elements are in the Periodic Table?
118
How many Atoms are in this compound? CaSO4
6
What is the smallest planet in our solar system?
Mercury
What type of variable is deliberately changed in an experiment to test its effect?
independent variable
What determines the atomic number of an element?
What two groups of the Periodic Table react aggressively?
Halogens and Alkali
What makes an Atomic Bomb?
Splitting the Atom
Which animal recently went DeExtinct from the wild?
Dire Wolf
What are two precautions that need to be taken when measuring a liquid?
State which subatomic particles have positive, and negative charges
Protons, electrons
State the full names of these five elements: O, K, Na, C, P
Oxygen, Potassium, Sodium, Carbon, Phosphorus
What are two benefits of radiation?
Medicine, CT, Energy, Scientific studies
Name two planets with rings
Jupiter, Saturn, uranus, neptune
What is the name for the part of an experiment that is kept the same to ensure a fair test?
Controlled Variables
An Atom is made up of mostly:
Empty space
two molecules of H2O and one molecule of H2O2 would be considered a:
Mixture
Which metal is liquid at Room temperature?
Mercury
In a clinical drug trial, what is the purpose of a placebo in the control group?
To test whether the actual effect of the drug is greater than psychological or expected effects
A study has multiple variables changing at once. Why is it difficult to draw a valid conclusion?
Because you cannot tell which variable caused the effect (lack of control).
Describe how an Atom is able to remain in its structure.
An atom has a positive nucleus and negative electrons. These electrons are attracted to the positive charge of the nucleus which keeps them circling the nucleus. The neutrons provide structure.
Define the names of the vertical columns and horizontal rows in the PT.
Groups and Periods
Name 5 properties of Metals
Shiny, Ductile, Malleable, conducts electricity and heat, solid, lattice
In what year did the United States land the first humans on the Moon during the Apollo 11 mission, and who was the first human on the moon?
1969, Neil Armstrong