adaptations
food chain
water cycle
solar system
force and motion
100

what is one common adaptation of a cactus

sharp spikes to protect itself

100

what is at the bottom of the food chain

the sun

100

what is evaporation 

the process that occurs when water changes from liquid to a gas

100

what is the definition of revolution

to go around

100

what is friction

the force that keep everything together and it stops stuff

200

what is an adaptation

 inherited trait or learned trait that helps an organism survive

200

what is at the top of the food chain

humans

200

what is the water cycle

the process by which water moves through the earth and atmosphere

200

what is the last planet

Neptune

200

what is gravity

the force that pulls you to the center of an object
300

what dog has webbed feet

 a Labrador

300

what usually eats grass in a forest environment

deer

300

does water stay salty when it evaporates from the ocean

no it stays in the ocean

300

how long does the moon take to complete a full revolution around the earth

29 days

300

what is push

to use force to move something forwards

400

why do eagles have great eyesight

 to find animals to eat high up

400

what is an animal that eats meat

an carnovoire

400

what percentage of earth is covered by ocean

75%

400

what is the asteroid belt

the ring of rocks that separate the inner and outer planets

400

what is pull

to use force to move something backwards

600

what is a learned behavior

something an organism learns in its lifetime
600

what is a food webs

lots of food chains

600

what is the purpose of the sun in the water cycle

it heats up the water

600

what is the definition of orbit

 the path one object takes as it revolves around something

600

what does friction do

it keeps absolutely everything together