Separating a mixture using chromatography

Aim:

To separate the different pigments in inks or dyes using paper chromatography.

Equipment:

- Inks from the ballpoint pen

- Marker pens or food coloring

- 250ml beaker

- A strip of filter paper

- scissors

- adhesive tape

- pencil or ice-block stick

- chromatography solution

Method:

1.  Cut a strip of filter paper that is long enough to reach the bottom of your beaker and able to wrap around your pencil or ice-block stick.

2.  Rule a line in pencil approximately 2cm from the bottom of your piece of paper.

3. Fill your beaker with enough chromatography solution to fill your beaker to a depth of 1cm.

4. Place a dot of ink above the ruled line on your filter paper. you need to produce a concentrated dot of ink so repeated applications may be necessary.

5. Suspend the strip of paper from the pencil or stick. you may need to use adhesive tape to stop it from falling into the solution.

6. Wait to see what happen. it is important that you do not disturb the beaker. if the solution comes in contact with the ink dot. the ink will run down into the solution, rather than move up the filter paper.

Observation:

What I observe is the filter paper with the felt pen is combine and the felt pen is going brighter the color in it.

Results:

Own Sign ( Tech )

Safety Sign

In tech, we have been making signs for the workshop. This was one of our first assignments. My sign is saying " Caution watch your step " because some people are walking around and not watching while they walk.

 These are the signs and there meaning. These signs are all around the world and if u listen to them they will save your life. signs are all around work sites too. 

Growing Crystal

Aim:

I want to find out how to make crystal from in a supersaturated solution. 

Equipment:

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

Method:

1. Pour approximately 150ml of hot water into a 250 ml beaker.

2. Add a spoonful of sodium acetate and stir until it dissolves.

3. Repeat step 2 until no more sodium acetate will dissolve.

4. filter the solution into a clean 250ml beaker.

5. Pour a small amount of this solution into a watch glass.

6. Label your watch glass and beaker and place the watch glass on a window still overnight.

Results:

Science ( bouncing ball )

Aim

The purpose of my investigation there would affect how the ball bouncing as some surfaces will absorb the energy of the descending ball better than other surfaces.

Hypothesis

The relationship between drop height and bounce height is only the bounce height will begin to level because the ball will reach its velocity.

Method

- Golf ball

- Ruler

- Stand

Results:

Separating Mixtures

Aim:

To separate a solution from a precipitate ( a precipitate is a solid that forms a liquid ).

Equipment:

• filter paper
• funnel
• 200ml beaker
• stirring rod
• lead nitrate
• conical flask

Method:

1. Pour approximately 10ml of copper sulfate solution into a beaker.

2. Add the same volume of lead II nitrate and potassium iodite solution. A precipitation reaction will occur, resulting in a cloudy blue precipitate of copper carbonate.
3. Your teacher will show you how to fold the filter paper so it fits inside your funnel.
4. Place the funnel, with the filter paper inside it, into the mouth of a conical flask.
5. Carefully pour the precipitate mixture into the funnel.

Observations: Outline what you saw happen:

We mixed the lead II nitrate and potassium iodite into the beaker and we put the mixture into the funnel and we recorded it and the mixture is turning to a clear.

Result:

Investigating Solubality

Aim:

To investigate the solubility of Calcium Chloride and Magnesium oxide to see which is the most soluble in water.

Equipment: 

• A 250ml beaker
• 100ml measuring cylinder 
• Calcium chloride
• Magnesium oxide
• A stirring rod
• A teaspoon
• A ruler

Method:

1. Fill the beaker with 100ml of tap water

2. Add a level teaspoon of Calcium chloride. A level teaspoon is obtained by running your ruler across the edges of the teaspoon.

3. Stir the solution until all of the Calcium chlorides has dissolved.

4. Repeat steps 2 and 3 until no more calcium chloride will dissolve into the solution.

5. Record how many teaspoons of calcium chloride were added.

6. Repeat the expirement, with the magnesium oxide.

Making a Dilution Series

Aim:

To make a dilution series to investigate concentration.

Equipment:

- A potassium permanganate crystal

- six large test tubes

- A plastic transfer pipette

- A test tube rack

- 10ml measuring cylinder

Method:

1. Place the six test tubes in a test tube rack. Label the rack with number 1 - 6.
2. Using the measuring cylinder, fill test tube 1 with 10 ml 0f water. fill the remaining test tube with 5ml of water.
3. Using your tweezers, add a single crystal of potassium permanganate to test tube 1.
4. Gently shake the test tube until the crystal has dissolved.
5. Using the transfer pipette, carefully remove exactly 5ml from the test tube 1 and pour it into the test tube 2.
6. Rinse the transfer pipette thoroughly to ensure that no purple solution remains.
7. Gently shake test tube 2 and repeat the transfer process, transferring exactly 5ml of solution from test tube 2 to test tube 3.
8. Rinse the pipette again and repeat the transfer process for test tubes 4, 5 and 6.

Results:

9 Drama

In drama and music, we are studying musical theatre. For my group performance, I am singing and dancing to "this is me", from the greatest showman, and I'm doing it with Kerri-Anne and Chyna.

what my performance is about:  the performance is about finding your place no matter what you look like, sound like and your personality. It is aimed to be inspiring to those who feel ashamed of their bodies.

what we have done so far: we have focused on the singing in our group, and it's coming along quite well.

who is in the group: sheen, Kerri-Anne, and Chyna.

what I personally need to improve on: I need to improve the dancing.

Social Studies ( Philippines )

1. What you have done or been working on.
In my group, we've done the slides that we make and we need to work on some things that we don't know yet.


2. What you have learned about your cultural group.
I've learned that wheres the tinikling come from.
I've learned some different kinds of languages in Philippines.