DOPHHAE
E
Eutrophication
1. How does increasing the temperature generally affect the rate of a chemical reaction?
increases the average speed of the reactant molecules
plastic ruler wooden stick sponge or foam cloth cups rubber band
Is energy potential
Yes
A
Acid rain
2. What is the main reason why increasing the surface area of a reactant increases the rate of reaction?
it exposes more of the reactant's surface to the other reactant
Purpose of Mirror Lab
To create an investigation that uses mirrors and reflections. Show how symmetry works with mirror images and how objects are reflected.
What are sound waves
a vibration that travels through a medium like air or water
H
Habitat fragmentation
3. How does temperature affect the kinetic energy of molecules involved in a reaction?
The faster the molecules of a substance move, the higher the kinetic energy, and the higher the temperature
Independent and Dependent of Heat Flow Lab
Independent variable the person
Dependent variable the time (# of minutes) for the ice to mel
What is kinetic energy
Kinetic energy is a form of energy that an object or a particle has by reason of its motion
O
Overexploitation
4. What effect does an increase in the surface area of a solid reactant have on the rate of reaction?
increases the reaction rate
Purpose of Steel Wool Lab
To observe the reaction between steel wool, vinegar and oxygen in the air.
What is wave energy
a renewable energy source that harnesses the power of ocean waves to generate electricity
D
Decrease in Natural Resources
5. Why does raising the temperature usually lead to a faster reaction?
increasing both the frequency of collisions and the energy with which particles collide
A flat mirror, one per group
A drawing of a simple shape (like a letter, figure, or pattern) Your choice
A pencil or marker
A ruler or measuring tape
Index cards
What is the difference between energy and power?
Energy is the capacity to do work,ower is the rate at which energy is used or transferred,