space
chem
bio
physics
100

is the sun a star?

yes

100

in which state of matter are the particles packed the closet together 

solid

100
define consumer

an organism that cannot produce its own food and must eat other plants/animals to get energy

100

true or false, opposite charges attract.

true

200

name all the planets in order

mercury, venus, earth, mars, jupiter, saturn, uranus, neptune.

200

density=....

M/V

200

define abiotic 

a non living part of an ecosystem

200

two neutral objcts are brought toghther, they will...

do nothing.

300

define meteorite 

a meteor that enters the earth's atmosphere and strikes the ground.

300

There is an equal number of protons and ______ in an uncharged atom.

Electrons

300
A ____ is a series of organisms that eat each other 

food chain

300

the symbol I=...

current

400

how is aurora borealis formed?

aurora borealis is caused by magnetic storms that have been triggered by solar activity, such as solar flares or coronal mass ejections.

400

how many elements are on the periodic table?

118

400

what is the mixture of gasses that surrounds the earth called

the atmosphere 

400

vinyl and cat fur are rubbed togther, which material beocmes negatively charged?

vinyl will become negatively charged, (lower in the charge tendancy chart)

500
how many moons does saturn have?

146

500

what is the process of turning a solid into a gas called?

sublimation

500

when the population of a species goes up in an area it could be from one of two reasons...

new births and immigration

500

in paralet circuts how do you solve for resistance?

1/RT=1/R1+1/R2+1/R3

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