Science summative

Question 1

Atoms

Answer 1

Atoms can form bond with each other making molecules , they are building blocks of everything

Question 2

Symbols and formulae

Answer 2

Letters used to represent chemical elements .

Question 3

Carbon c6

Answer 3

Non metal element , it exist in different forms

Question 4

Elements

Answer 4

Can’t be broken , there are about 100 elements

Question 5

Only metal that is liquid

Answer 5

Mercury

Question 6

Oxygen

Answer 6

Nn metal , molecule , if the temperature gets High many substances might burn .

Question 7

Nitrogen

Answer 7

Element , about 78percent earths atmosphere , very cold

Question 8

Hydrogen

Answer 8

H2 molecule, reacts with chemical elements that are in nature

Question 9

Solids

Answer 9

Close together , can’t be squished , arranged in a regular way , when its hotter they vibrate fast and expand

Question 10

Liquids

Answer 10

Random arranged , when there are spaces between they can be compressed .

Question 11

Gases

Answer 11

Widely spaced , easily squish. Comp. , there is nothing In them

Question 12

Scientific method

Answer 12

Make an observation , ask a question from an hypothesis make a prediction, do a test or experimentation , analyse the data draw a conclusion .

Question 13

Indipendent variable

Answer 13

Changing

Question 14

Dependant variable

Answer 14

Measuring

Question 15

Controlled variable

Answer 15

Keeping the same

Question 16

Lab safety

Answer 16

Don’t run , use googles , listen to the teacher , ponytail ,stand up , no food no drinks

Question 17

Electrons

Answer 17

Weighs nearly nothing , location shells , negative , equal to protons, color blue

Question 18

Protons

Answer 18

Weighs 1 , color : red , positive charge, atomic number

Question 19

Neutron

Answer 19

Weighs 1 , color green , has no charge , location neuclues

Question 20

Shells

Answer 20

1st max , 2nd 8max , 3rd 8 max

Question 21

Change atomic number and you change ….

Answer 21

The element

Question 22

Inventor pt..

Answer 22

Dimitri mandaleer

Question 23

Group 1

Answer 23

Metals , easily react

Question 24

Noble gases

Answer 24

Refuse to get involved

Question 25

Non metals location

Answer 25

Right Side

Question 26

Metals location

Answer 26

Left side

Question 27

Facts

Question 28

Ions

Answer 28

Are atoms with a charge .