science 5

Question 1

whats matter

Answer 1

Matter is anything that occupies space and has mass.

Question 2

what does a solid have

Answer 2

A solid has a definite shape and volume.

Question 3

what does liquid have

Answer 3

A liquid has a definite volume but no definite shape

Question 4

does gas have volume

Answer 4

A gas has neither a definite volume or shape.

Question 5

what does rigid mean

Answer 5

unable to bend or be forced out of shape; not flexible

Question 6

whats physical changes

Answer 6

physical changes is the material is the same but it has energy added or removed to change the state of the material

Question 7

what is H

Answer 7

Hydrogen

Question 8

what is c

Answer 8

Carbon

Question 9

what is o

Answer 9

oxygen

Question 10

what is n

Answer 10

Nitrogen

Question 11

whats a molecule

Answer 11

A molecule is a single group of 2 or more atoms bonded

Question 12

what are elements

Answer 12

Elements are the different types of atoms that exist

Question 13

whats in the center of an atom

Answer 13

Centre of the atom holds the Protons and Neutrons

Question 14

what neutrons charged by

Answer 14

Neutrally charged particles inside the nucleus

Question 15

what electrons are charged by ……..

Answer 15

Negatively charged particles that surround the nucleus

Question 16

how many electrons and protons in an element

Answer 16

There is the same number of electrons as protons in an element

Question 17

what size is a electron

Answer 17

Electrons are extremely tiny and have no mass

Question 18

whats in an atom

Answer 18

Atoms have protons and neutrons in a nucleus surrounded by very tiny electrons

Question 19

are protons postive or negitive

Answer 19

Protons are positive

Question 20

are electrons negitive or positive

Answer 20

electrons are negative

Question 21

how are electron shells shown

Answer 21

Electron shells are show as circles around the nucleus of an atom

Question 22

what are the three states of matter

Answer 22

gas Iiquid solid

Question 23

what is data

Answer 23

data refers to known facts or pieces of information collected together for reference or analysis

Question 24

whats a compound

Answer 24

compounds are made up of atoms of more than one element

Question 25

what is Qualitative data

Answer 25

Info that does not have numbers

Question 26

what is quantitive data

Answer 26

info that is expressed by numbers

Question 27

whats an actomic number

Answer 27

the number of protons and electrons

Question 28

whats atomic mass

Answer 28

the mass of the protons and neutrons in an atom

Question 29

whats monatomic

Answer 29

a single atom

Question 30

how many electrons are in the first shell

Answer 30

2

Question 31

how many electrons in the second shell

Answer 31

8

Question 32

how many electrons in the third shell

Answer 32

18g