science test feburey

Question 1

what makes an insulator an insulator

Answer 1

they do not give up electrons in the outer orbit

Question 2

batteries are

Answer 2

chemical energy

Question 3

when an circut is switched on is it open or closed

Answer 3

closed

Question 4

why doesnt pure water conduct electricity

Answer 4

because it doesnt have impurities and Ions

Question 5

whats strange about H20

Answer 5

when frozen in moves slower and farther apart

Question 6

whats strange about Co2

Answer 6

it skips the liquid phase

Question 7

whats a circut

Answer 7

a closed path where electrons flow freeley

Question 8

what is voltage

Answer 8

the electric force

Question 9

when one or more electrons is stripped away from an atom it becomes

Answer 9

postive

Question 10

how do sharks use elctectricity

Answer 10

they have brain boogies that produce elctrical signals which are sent to the brain aleting the shark if there is a heart beat near

Question 11

what are alternative sources of energy

Answer 11

geo thermal, solor and wind energy

Question 12

what is current measured in

Answer 12

amps

Question 13

whats a magnetic domain

Answer 13

a region withen a magentic matriel in which the magnetizantion in a uniform difrection

Question 14

energy conversation with fan

Answer 14

chemicl becomes mechincal energy

Question 15

distilled water and conductivity

Answer 15

water needs ions and minreals to conduct

Question 16

voltage vs curre nt

Answer 16

voltage creates the current and current is the flow of electrons

Question 17

static vs current

Answer 17

static is the reaction between negitve and postive, staic goes to one place and current moves but ends up at the same placde

Question 18

who ivneted light bulb

Answer 18

no one

Question 19

what did ben discorve

Answer 19

the connection between electrcity and lighting

Question 20

when are atoms neutral

Answer 20

when there is equal amout of electrons and protons

Question 21

conducter vs inslateors

Answer 21

conduct give up and inslater keep in shell

Question 22

how balloon staick the da whall

Answer 22

balloon vharge is negitive and wall is postive that steal negitve charge

Question 23

why do electrons stay in orbut

Answer 23

becayse lelectrond ans protns attract eachother

Question 24

what is energy

Answer 24

the abilty to do work

Question 25

what is motion

Answer 25

change in posion

Question 26

what is matter

Answer 26

anything that takes up space and can be weighed

Question 27

we live cus ythe sea….

Answer 27

LIVES

Question 28

where does out osegyn come from

Answer 28

70 come ofrom the sea (plankton) ad 30 come from tree frm le rain forest

Question 29

what cuase ttides

Answer 29

.the gravtitonal force of the moon

Question 30

what the answer to zimms question

Answer 30

force

Question 31

four parts of a circut

Answer 31

loud switch, cunducters, source