Ecosystem
Force and Motion
Light
Sound
Planets
100
What would you call something that is living?
biotic
100
A push or a pull
force
100
Materials that do not let light pass through them are...
Opaque
100
The loudness or softness of a sound is its:
volume
100
Name the 8 planets in order
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
200
A network of overlapping food chains is called what?
food web
200
How do I determine the speed of a moving object?
Distance divided by time
200
When light strikes a smooth, shiny surface it bounces back in a process called:
reflection
200
How high or low a sound is
pitch
200
Name 2 characteristics of the inner planets.
closest to the sun
dense and rocky
few moons
thin atmosphere/ small diameters
large, solid cores
short revolution times
300
What are the 3 types of consumers and what do they eat?
Herbivore: plants
Omnivore: plants and animals
Carnivore: animals/meat
300
Sammie is pushing a 30 pound shopping cart and Peyton is pushing a 50 pound shopping cart. Which girl is using more force to move their cart? Why?
Peyton: more mass = more force needed to move the object
300
Jeremy is wearing a blue shirt. Why do we see blue on his shirt?
The color blue is being reflected and all of the other colors are being absorbed.
300
Sound travels in...
waves
300
Name 2 characteristics of the outer planets
furthest from the sun
Gas Giants
many moons/ ring systems
no solid surface/ small cores
very cold
400
What happens to energy as it moves through an energy pyramid?
It decreases. Only 10% of the energy is passed along to each level of the energy pyramid.
400
Force that opposes motion.
Friction
400
What type of material do we consider a window? Why?
transparent: lets all light through
400
The number of vibrations in a unit of time is called:
frequency
400
What determines a day on Earth?
What determines a year on Earth?
Day: one rotation on its axis
Year: one revolution around the sun
500
Name all of the first level consumers.
rabbit, mouse, grasshopper, bird
500
A ball is moving at 20 ft/min. How far does the ball travel in 5 1/2 minutes?
110 feet
500
What does light do when it travels from air to water?
refracts/bends
500
Represent the soundwaves for an instrument with a low pitch and represent the soundwaves for an instrument with a high pitch. Label your drawings.
low pitch: waves are further apart/ less frequent
high pitch: waves are closer together/ more frequent
500
What is the sun made out of (be specific) and what is something that occurs on the sun?
hydrogen and helium
solar flares
sun spots