Matter and Energy
A state of matter that has a definite volume but no definite shape.
Liquid
The major source of energy that powers the movement of water throughout the environment
The sun
The Five Steps to make a sedimentary rock, and what each step means
After the sun, What is the first step in most food chains? and give an example.
producer
What is an animal that only eats meat called?
Carnivore
1. Which of the following best describes matter?
A. Anything that has energy
B. Anything that has mass and takes up space
C. Anything that moves
D. Anything that is alive
B. Anything that has mass and takes up space
How long does it take Earth to complete one orbit around the Sun?
about 1 year/365 days
In photosynthesis, what are the inputs (things plants need) and what are the outputs (things plants produce)?
Inputs: sunlight, water, carbon dioxide | Outputs: glucose (food) and oxygen
Similarity and the Differences between Producer, Consumer, and Decomposer
- all Biotic
- Producers make their own food, Consumers eat other things for energy, and decomposers break down dead plants and animals for energy
instrument used to measure volume of a liquid
Graduated Cylinder
A beaker contains a mixture of sand, salt, gravel and iron fillings. Which substances are not soluble in water? Which are?
salt, gravel and iron fillings. Salt is soluble.
What force keeps planets moving in orbit around the Sun?
Gravity
To form fossil fuels you need four things
Heat, pressure, prehistoric animals and plants and heat
A forest ecosystem has deer, wolves, oak trees, grass, and mushrooms. The deer eat grass and oak leaves. The wolves eat deer. Mushrooms break down dead plants and animals.
Which statement BEST explains the role of mushrooms in this ecosystem?
A. They produce food using sunlight
B. They eat deer and wolves
C. They break down dead matter and return nutrients to the soil
D. They compete with grass for sunlight
C. They break down dead matter and return nutrients to the soil
allows heat and electricity to flow through the material
Conductors
A measure of the amount of matter in an object
mass
Waxing vs. Waning
Waxing is "light on the right" (northern hemisphere), making the moon seem bigger and brighter, while waning is "dark on the right," causing the moon to appear smaller
What natural force(s) moves soil, rocks, and sand?
What is wind, water, ice, or gravity?
What do arrows in a food chain show?
The flow of energy
The process where plants release water vapor from their leaves into the air.
Transpiration
A student places four objects in a container of water. The observations are below:
● Object A sinks
● Object B floats
● Object C sinks
● Object D floats
Which statement BEST describes the objects?
A. Objects A and C are less dense than water
B. Objects B and D are more dense than water
C. Objects A and C are more dense than water
D. All objects have the same density
C. Objects A and C are more dense than water
Name the planets in order closest to furthest from the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Coal, oil and natural gas are considered nonrenewable resources because
There is a limited supply and they cannot be replenished in a short period of time
The difference between tadpoles and frogs is
Tadpoles live in water, breathe with gills, have no legs and have a long tail. Adult frogs live on land and in water, breather with lungs, have legs and have no tail
Environment vs. Ecosystem