Energy Basics
This type of energy comes from the sun
Radiant Energy
Heat always moves from a _____ object to a _____ object.
Heat moves from a warmer object to a cooler object.
This organelle is known as the control center of the cell.
Nucleus
All living things are made of one or more of these.
Cells
What causes an echo?
Sound reflects off surfaces.
Energy that is stored and waiting to be used (Think pendulum being pulled back but not yet released).
Potential Energy
Which state of matter changes shape but keeps its volume?
Liquid
Which organelle supplies energy to the cell?
Mitochondria
An organism made of only one cell is called _____. (Think opposite of multicellular)
Unicellular Organism
Why does a car sound higher pitched as it moves closer to you?
Sound waves become more compressed.
Energy of motion
Kinetic Energy
What happens to particle movement when temperature increases?
Particle movement increases (they move faster).
This organelle packages and delivers proteins.
Golgi Apparatus
Why are levels of organization important to an organism?
Because all levels work together to function as a whole.
Sound travels as these.
sound waves
The law that states energy cannot be created or destroyed.
Law of Conservation
Why does a drink placed in ice become colder?
Heat moves from the drink to the ice, making the drink colder.
Which organelle contains chlorophyll and is the site of photosynthesis?
Chloroplast
What evidence would show fossils were once living organisms?
Evidence of cellular structures.
Can sound travel through a vacuum? Why or why not?
No, sound cannot travel through a vacuum because it needs matter.
When a pendulum is pulled back and not moving, this type of energy is present.
Potential Energy
What happens to a gas when thermal energy is removed?
The gas will turn into a liquid.
Name two structures found only in plant cells.
Chloroplast and the cell wall
What tool is best used to see cells in living and nonliving samples?
Microscope
What happens to sound waves when they hit a hard surface like a canyon wall?
Sound waves reflect back toward the source.