What is the formula for newton's second law of motion?
F= m x A
What is the powerhouse of the cell?
Mitochondria
Why is the equator warmer than the poles?
The equator gets the most direct sunlight.
What is Mass Communication
It’s the communication of information to many people at once.
What is the main greenhouse gas that is released when fossil fuels are burned?
Carbon Dioxide.
In a science museum there is a very large lava lamp on display. If someone asked you why the liquid from the top sinks to the bottom and liquid from the bottom rises, what would you tell them?
Colder liquids are more dense than warm ones, and there is a light at the bottom of the lamp. This causes convection currents.
what system is responsible for the exchange of gases?
The respiratory System
What causes the seasons and uneven heating of the earth?
Earth’s tilt on its axis
Which is a conductor, Wood, Metal, aggregate, Plastic
Metal
Why is there more gravity on the Earth than on the moon?
Earth has a larger mass than the moon.
What is the smallest unit of an element makes up everything?
Atoms
List the organization of living things from least complex, to most complex.
Cell, tissue, organ, organ system, organism
What are 3 pieces of evidence to support the Theory of Continental Drift?
Continents fit together like a puzzle, mountain formations, and fossils.
What is the difference between tension and torsion?
Tension is a stretching or pulling force. Torsion is a twisting force.
On which celestial object in our solar system, would your mass be the greatest?
Your mass Is the same no matter what planet you are on.
A change that affects the form or state of a substance but not their chemical components.
Physical change
What are the two parts of a plant cell that are not in an animal cell?
Chloroplasts
Cell walls
What is the process where water, ice, and rain break down rock into smaller pieces?
Weathering
Name one of the hand tools that fastens nuts and bolts
Wrench or pliers
Define the terms a) wavelength, b) frequency, c) amplitude, d) Crest
a. Wavelength distance from crest to crest
b. Frequency: Number of waves that pass by in a certain amount of time
c. Amplitude: Distance between crest and resting position
d. Highest point of a wave
Andrea is learning about compounds and mixtures in school. She says that the salad is a compound. Is she correct why or why not?
She is incorrect because there are no chemical bonds in salads.Salad is an example of a heterogenous Mixture
What are the 3 types of symbiotic relationships? explain each one
Mutualism: both species benefit
Commensalism: one species benefits, the other is neither harmed nor benefited
Parasitism: one species (the parasite) benefits and the other (the host) is harmed
Descirbe the 3 types of plate boundaries
Convergent: Come together, create nountains, volcanoes and trenches.
Divergent: Move away from each other, create rift valleys and mid ocean ridges
Transform: Slide past each other. faults are major features.
Provides structure and support lie a skeleton
The table below shows the masses and volumes of four cubes made of different materials.
Which cube has the greatest density? and why?
A.cube 1
B.cube 2
C.cube 3
D.cube 4
cube 1. Because its density is 8g/cm3