Chemistry Part 1
Name all three subparticles in an atom
Proton, neutron, electron
What are 2 examples of physical properties
Color, mass, length, volume, boiling point, melting point, freezing point, texture, density, height, solubility
What is the height of the wave called?
Amplitude
What type of energy do plants need in order to do photosynthesis?
Light energy
Name a factor that influences the rise in global temperatures
Greenhouse gases, deforestation, volcanos, agriculture, burning of fossil fuels
What does the law of conversation of matter state?
Matter is not created or destroyed
A change in color, gas formation, combustion (formation of fire), new odor, formation of a precipitation are all evidence of what kind of change?
Chemical Change
Describe the relationship between amplitude and energy.
Amplitude and energy have a direct relationship.
Identify a natural cause and a human cause of carbon found on earth.
Natural- photosynthesis, volcanos, forest fires, decaying organisms, biological waste products.
Human- Factories, cars, burning fossil fuels, digging for resources, deforestation
Define greenhouse gas (bonus 20 points if you can name 2 greenhouse gases)
Define Density (bonus 30 points if you can also identify the formula)
The amount of matter in a certain amount of volume (space)
What is the difference between natural and synthetic materials?
Natural materials are found naturally on the Earth, and synthetic materials are man-made
What is it called when a wave bends as it goes through an object?
Refraction
Identify the reactants of photosynthesis (bonus 30 points if you can remember the exact number of molecules)
6 Carbon dioxides and 6 waters
Describe the difference between a renewable resource and a nonrenewable resource.
Renewable resources replenish is a short time period (less than 100 years) nonrenewable resources can take way over 100 years to replenish.
What is an independent variable, dependent variable, and a control in an experiment.
Independent- the factor that changes
Dependent- What is measured
Control- The factor(s) that stay the same
What is is called when gas particles cool down and convert to a liquid?
Condensation
Which 2 factors influence how much gravitational potential energy an object has?
Mass and height
Describe the path of matter and energy getting to a carnivore.
Producers --> herbivores --> carnivores
What causes natural resources to be unevenly distributed?
Geological processes
Does this chemical equation follow the law of conservation of mass? Explain why
C3H8 + O2 --> H2O + CO2
No. There are not an equal amount of atoms.
This is correct:
C3H8 + 5O2 --> 4H2O + 3CO2
Describe how a hot air balloon works (words that need to be included- particles, thermal energy, density)
What is the relationship between speed and mass with the amount of kinetic energy an object has?
Mass and speed have a direct relationship with kinetic energy.
What is the entire equation for cellular respiration (bonus 50 points if you give the specific amounts of all the the molecules)
1 glucose + 6 oxygen molecules --> 6 carbon dioxide molecules + 6 water molecules
What are the specific conditions needed for a hurricane to occur?
Warm ocean waters, cooler atmospheric temperatures, moisture in the air, thunderstorms, wind