stars are giant balls of
what is gas
what is a food chain
a group of organisms that give energy to eachother
ability to work or cause change
what is energy
electromagnetic wavelengths are called what
what is spectrum
what is a force
what is a push or pull that acts on an object
what is the farthest planet from the sun
what is neptune
what comes first in a food chain
what is producer
bending of light
what is refraction
when all colors of visible are mixed together what color does it make
what is white
what is a contact force
what is force that requires to pieces of matter to touch
True or false the sun is 100 times wider then the earth
what is true
a food web is
A all the food in a single ecosystem
B a space craft
C a bunch of food
what is all the food in a single ecosystem
material that lets light pass through,but not all
what is translucent
Does light travel in waves or vibration
what is waves
what is motion
what is the movement of an object from on position to another
what color is the hottest star
what is blue
how many steps are in an ecosystem
A there is no limit
B four
C 60
What A or there is no limit
energy due to motion
what is kinetic energy
if there are no vibrations what sound would you hear
A no sound
B more sound
C less but still some sound
what is A or no sound
what is a non contact force
what is a force that acts at a distance
What rarely hits Earth?
stars
comets
space shuttles
what is comets
light that lets no light through
what is translucent
what is sound energy measured in
what is hertz
Force can change the way a object whats
what is the way that objects move