Scientific Measurement
Atomic Structure
Chemical Bonds
Scientific Desgin
Random
100
300 cm = ____ m
What is 3.00 m
100
Which subatomic particle identifies the atom?
What is the proton
100
Bonds form because atoms are seeking ___
What is stability
100
A dependent variable has to be what?
What is measurable
100
What is the variable that is changed by the scientist during the experiment?
What is the independent variable
200
The SI unit for length
What is meters
200
How many protons are in Ca?
What is 20
200
Nonmetals bond with metal elements to create ____ bonds.
What is ionic
200
Students in a science class placed ice cubes in a cup. They were studying variables that affected how long it takes the ice to melt. Select the variable that would most likely NOT affect the time it takes the ice to melt.
A) Temperature of the Room
B) Number of Students
C) Size of Cup
D) Size of Ice Cubes
What is the number of students
200
What is the order of units from largest to smallest starting with Kilo and ending with milli?
What is: Kilo, Hecto, Deca, base, deci, centi, milli
300
What is the measure of the amount of matter?
What is mass
300
Write a description of the structure of an atom.
What is an atom is composed of 3 subatomic particles, the positive proton, neutral neutron, & negative electron. The proton and neutron are located in the nucleus and contribute to the mass of an atom. The electrons are located outside the nucleus in the electron cloud.
300
If an element has more electrons than protons, it will have a ______ charge. These are referred to as ______.
What is a negative charges and anions
300
______ is a commonly used method to help scientists understand the world around us and what makes it work the way it does.
What is the experimental design process
300
What are two conditions atoms must have in order to form ionic bonds?
There must be at least 1 metal and 1 nonmetal atom. There must be an END greater than 2.0 and a complete transfer of the valence electron.
400
Put the following measurements in order from smallest to largest:
2000 mm
2.1 m
10 cm
40,000 cm
What is 10 cm, 2000 mm, 2.1 m, 40,000 cm
400
What is the identity of this atom?
What is nitrogen
400
Based on the END Francium (Fr) and Flourine (F) create a(n) _______ bond with an END value of ________.
What is ionic and greater than 2.0
400
What would be an appropriate title for this graph?
What is: The effects of light on plant growth (The effects of the IV on the DV)
400
How do you write a hypothesis?
What is; If the IV does this, then the DV will do this, because this is the science.
500
Scientific Notation for 8675000 m
What is 8.675 X 106 m
500
Label the diagram
A = Outer Orbit
B = Nucleus
C = Electron (Valence)
D = Proton
E = Neutron
F = Electron Cloud
500
Write a short caption to describe the process occurring.
Image 1: Sodium a metal and Chlorine a nonmetal are seeking stability. They do not have 8 electrons in their valence shell so they need to bond.
Image 2: The positive nucleus of each atom is displaying electrostatic attraction towards the valence electrons of each atom. Chlorine has a larger electronegativity and a stronger pull (bigger arrow).
Image 3: Chlorine (nonmetal) takes Sodium's (metal) single valence electron. There is a complete transfer of the electron.
Image 4: Chlorine has gained an electron and becomes an anion (negative charge). Sodium has lost its electron and becomes a cation (positive charge). They are both stable because they have fulfilled the octet rule.
Image 5: Sodium and Chlorine create an ionic bond via electrostatic attraction between opposite charges. (Like a magnet)
500
What would be a logical conclusion for this experiment?
What is, 9 hours of sunlight provide the greatest amount of growth.
500
How do you write a number in scientific notation?
Put the 1st whole number in the one's place. Count how many decimal places you moved. If the decimal moves to the right the exponent is positive. If the decimal moves left the exponent is negative. It as written as x 10--