Science-y Stuff
Chemistry
Physics
Graphs & Math
7H - Weather
100
Identify the states of matter and describe the arrangement of atoms in each.
1 - solid, molecules are tightly packed, vibrate slightly
2 - liquid, farther apart, moving more, slide past each other
3 - gas, spread apart, moving the fastest, the most energy
100
How many different types of atoms make up one molecule of carbon dioxide?
2 (carbon, C, and oxygen, O)
100
What are the variables that affect kinetic energy?
BONUS: write the formula.
Mass and velocity
KE = 1/2(m)(v2)
100
Below is some data from the Mass vs Acceleration Lab. What is the independent variable?
# of Washers
Mass of Cups and Washers
100
What water cycle processes are responsible for changing sizes of glacial ice?
Melting and freezing
200
Why is it important that there are controlled variables in an experiment?
To make sure results and data are accurate.
200
Describe the difference between natural and synthetic materials.
Natural - came from the Earth/nature
Synthetic - anything man-made
200
What are the variables that affect potential energy?
BONUS: write the formula
Mass, height and acceleration due to gravity
PE = mgh
m = mass
h = height
g = acceleration due to gravity
200
Below is some data from our Mass vs Acceleration Lab.
Identify the dependent variable.
Average Distance
Speed
Acceleration
200
On Earth, which surface absorbs the most solar energy? How does this affect weather?
Land surfaces (lower specific heat), which causes unequal heating of the Earth which leads to weather changes.
300
Why is it important to run multiple trials of an experiment?
To get reliable results and to make sure results aren't skewed by error.
300
Evidence of a chemical reaction.
Heat and light are produced, bubbles, fizzing, smoke, products and reactants are different (something new formed), temperature and/or color change.
300
How is the transmission of light waves different than the transmission of sound waves?
Light waves can be transmitted through space and different forms of matter.
Sound cannot travel through space and only travel through matter (needs a medium).
300
A student wanted to investigate magnetic fields with an electromagnet. What question could be investigated based on the graph below?
How does changing the current through an electromagnet affect the magnetic field strength?
How does changing the current affect the electromagnetic field strength of an electromagnet?
300
What's a reasonable mitigation action that could be taken during a flash floods or flooding events?
Create barriers along the roads, build seawalls, post evacuation routes, have an emergency plan ready
400
Describe the relationship between frequency and wavelength.
As frequency decreases, wavelengths increases.
As frequency increases, wavelengths decreases.
400
How do chemical reactions show conservation of matter?
The mass of the reactants is equal to the mass of the products (mass is equal on both sides).
400
What effect will a higher amplitude have on a sound wave and why?
Higher volume because there's more energy
400
Which statement is supported by evidence in the graph?
400
Based on the graph, which season would a drought most likely occur and why?
Summer, there's high temperatures and little precipitation.
500
A student made a claim that a chemical change occurred while the eggs were boiled. Analyze the given information and identify the evidence that supports this claim.
The color of the egg turned from clear to white and the yolk turned from yellow liquid to warm, yellow solid.
500
Identify the molecules below.
1 - Water (H2O)
2 - Oxygen (O2)
3 - Carbon dioxide (CO2)
500
Identify the behavior of each light wave below.
1 - refraction
2 - reflection
3 - transmission
500
Identify the relationship shown on the graph below and describe the slope.
A - direct relationship (both variables do the same thing), positive slope
B - direct relationship, negative slope
500
What water cycle process will leave minerals behind like the ones shown below? Describe the phase change that occurs.
Evaporation, water changing from liquid to gas.