science t1

Question 1

what are the rules of laboratory safety

Answer 1

1. do not run
   2.tie up long hair in a prac
   3.do not bring any food or drink or consume anything in the lab
   4.wear leather shoes
   5.listen to the teacher
   6.if something is broken tell the teacher
2. do not touch, smell or taste any chemicals
3. pay attention to the teacher
   9.always wear safety goggles
4. don’t leaves personal items around the table

Question 2

what does a Bunsen burner do?

Answer 2

heat up the subtances

Question 3

what does a beaker do?

Answer 3

hold the liquid

Question 4

what does a measuring cylinder do?

Answer 4

measure the volume of a liquid

Question 5

what’s does a test tube do?

Answer 5

to hold, mix or heat chemicals

Question 6

what’s does a boss head and clamp do?

Answer 6

The boss head attaches the clamp to the retort stand and the clamp holds the glass containers so its doesn’t fall through

Question 7

what does a crucible do?

Answer 7

To melt substances

Question 8

what does a tripod do?

Answer 8

it hold flask or beaker as it gets heated by the Bunsen burner

Question 9

what does a funnel do

Answer 9

it transfer a substance to one container to another

Question 10

what does a retort stand do?

Answer 10

it is attached to the clamp by the boss head so that the clamp can hold other equipment

Question 11

what’s does a conical flask do?

Answer 11

its holds and measure liquids

Question 12

what does a gauze mat do?

Answer 12

its use to hold a container as its being heated

Question 13

what does a heat mat do?

Answer 13

its protects the work space that the experiment is happening on

Question 14

what does a test tube holder do?

Answer 14

hold test tube if its to hot or cannot be held

Question 15

what does a pipette do?

Answer 15

it transfers or measures small amount of liquids

Question 16

what do safety goggles do?

Answer 16

to protect your eyes

Question 17

what is a independent variable?

Answer 17

a variable that cannot be changed

Question 18

what’s a dependent variable

Answer 18

a variable that can change

Question 19

on a graph where is the dependent variable and independent variable?

Answer 19

the independent is on the x axes and dependent in on the y axes

Question 20

what is density?

Answer 20

density is the mass of a one centimeter cube.

Question 21

how do u get a effective experiment?

Answer 21

to get a effective experiment you how that you know the problem that your trying to solve, what your measuring, what your changing, what your going to keep and anything else that might effect the experiment.
Change one thing
Measure something
keep everything the Same
Cows
Moo
Softely

Question 22

3 states of matter

Answer 22

liquid, solid and gas

Question 23

what is matter?

Answer 23

everything is made up of matter
matter is any substance that has a mass

Question 24

properties of a solid

Answer 24

has a fixed shape
cannot be compressed
cannot flow

Question 25

properties of a liquid

Answer 25

takes shape of the container is in is cannot be compressed can flow

Question 26

properties of gas

Answer 26

no fixed shape- takes shape of container can be compressed can flow

Question 27

particles arrangement of a sold

Answer 27

the particles are closely compact and cannot move but do vibrate a little bit. they also have a high density

Question 28

particles arrangement of a liquid

Answer 28

The particles are close to each other but are seperated and move more then a solid but not by much and have a more denstiy of a solid but less then a gas

Question 29

particles arrangement of gas

Answer 29

The particles are separated and are everywhere. they move around a lot have have a high density

Question 30

solid to a gas

Answer 30

sublimation

Question 31

gas to a solid

Answer 31

deposition

Question 32

solid to a liquid

Answer 32

melting

Question 33

liquid to a gas

Answer 33

evaporating

Question 34

gas to liquid

Answer 34

condensing

Question 35

liquid to a solid

Answer 35

freezing

Question 36

what is a solvent

Answer 36

the liquid that desolves

Question 37

what is a solute

Answer 37

the substance that is being desloved

Question 38

what does a graph need

Answer 38

title labels of the axes and the name of the variable scale