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Monday, 19 March 2018

Growing cyrstals

Aim: 
I want to find how to make crystals form into a super-saturated solution
Equipment:

  • a supersaturated solution sodium acetate 
  • a seed crystal of sodium acetate
  • Bunsen burner
  • Boiling tube
  • Scissor Tongs
  • Heat Mat
  • Funnel
  • Filter paper
  • Small beaker

Method:
































 I took a super saturated solution and we put it into a boiling tube and funnel and we watch it slowly drip down and it seed Crystal in the boilling tube and it stared to Crystal's



Wednesday, 14 March 2018

Dilution

Aim:
I want to investigate how to dilute a solution

Equipment:
Test tube rack
Test Tube
10ml measuring cylinder

Method:

Fill the measuring cylinder with 10 ml of water




put the water into the test tube



Add 5ml of water to the last 5 of the test tubes



Get a small spatula full of  Potassium manganite

Put the Potassium manganite into the 10ml of water and mix it

take 5 ml out of the first test tube

put five ml into the second test tube and mix

take 5ml out of the second test tube and put it into the third on and mix

take 5ml out of the third one and put it into the fourth one and mix it

take 5ml out of the fourth one and put it into the fifth one and mix

take 5ml out of the fifth one and put it into the sixth one and mix

Results:


The more time you take out the water and add it to water the mixture should be getting litter every time you add it to more water.

The reason why it is getting litter every time is because there is a different amount of water and Potassium manganite because you are taking it out of where there is more of the Potassium manganite
because it has less and less of the Potassium manganite and there is more water every time.


















Friday, 9 March 2018

separating Mixtures

Aim: to separate a solution from a precipitant ( a precipaint is the name for a solid that forms a liquid during the chemical reaction)

Equipment: 
Potassium iodide.
Lead Nitrate .
conical flask
200 ml beaker
funnel
filter paper



Method:







discussion
When I put the chemicals together it turned yellow
then we put the chemicals into a funnel with filter paper 
then I watched and the two chemicals had filtered and the chemicals separated and when back to there original color 



Tuesday, 6 March 2018

My performance

My group has done the song and we need to practice our parts and do our roles 
Practice to get better at our song so that we can get better at our performance
We are performing Your welcome from Moana
 

Wednesday, 28 February 2018

Investagation write up

Aim: I am Trying to find out how high a golf ball would bounce from different heights

hypothesis:
I think it might go half way or maybe 3 quarters

method:
1. get the golf ball get the one-meter ruler
2. go on the vinyl
3.put the ruler on the ground
4.bounce the ball from different heights
5. record data take the photos
6.take a video for the blog

Dependent Variable: we are gonna measure for the floor

Inderpent Variable: we can change it if we drop it on the carpet

Control Variable: we need to control where the ball bounces so we can get only one bounce

drop 1 from one meter 80cm
drop from 80cm is 67 cm
drop from 60 cm is 49 cm
drop form 40cm is 31 cm
drop from 20cm  is 16cm




Monday, 19 February 2018

Safety Signage

types of sign's
Hazard
Image result for hazard sign
it means putting stuff under decks or watching your step










Mandatory

Image result for mandatory signthis means wear ear muffs                         





Prohibition

Image result for prohibition sign

This sign don't wear sandels




This is my sign




















Monday, 12 February 2018