Gummy Bears Osmosis

Gummy Bear Osmosis

Aim:

I want to find out what happens to Gummy Bears when we put them into different liquids.

Prediction:

I think that the Gummy Bears will absorb the liquids.

Method:

  

Equipment:

• Three solutions - water, sugar and salt

• Four Gummy Bears of the same colour

• Two Petri Dishes

• Marker pen

• Electronic Balance

• Measuring Cylinder

• Beaker

Steps

1. Get your equipment.

2. Put on your safety glasses

3. Label Petri dishes with DRY, WATER, SALTWATER, SUGAR WATER

4. Weigh the Gummy Bears and record their weight on the Petri Dish.

5. Add 40mL of the solution into the Petri dish.

Findings:

Weight change

Water Absorbed by Gummy Bear

How many mL left in the petri dish?

Water Absorbed by Gummy Bear?

Why did the dry gummy bear lose weight?

Why did the normal water gummy bear absorb more water?

Why did the sugar water gummy bear absorb less water?

Osmosis - what does this word mean?

Gummy Bear: 5.43g

Definitions:

Diffusion: The Movement of any substance from a higher concentration to a lower concentration.

Osmosis: The movement of liquids or gases through a semi-permeable membrane.

Chart: Weight Change

	Dry	Water	Saltwater	Sugar water
initial weight of Gummy Bear	5.43g	5.43g	5.43g	5.43g
Final Weight of Gummy Bear	4.43g	3.56g	4.56g	6.13g
Weight Difference	0g	-1.87g	-0.87g	0.60g
Initial Volume	40ml	40ml	40ml	40ml
Final Volume
Volume Difference

Conclusion:

The dry gummy bear lost weight and was light after 6 days.

The gummy bear in the normal water lost 1.87g in 6 days.

The gummy bear in the saltwater lost 0.87g in 6 days.

The gummy bear in the sugar water gains 0.60g in 6 days.

Greta Thunberg - Heros

 Yesterday we started a new topic but it's still about heroes. Our new topic is Earth Day and Greta Thunberg. Yesterday we had to read an article, watch a video and if we think we can do more we read a bigger article. If you were not here yesterday you had to just read the article and watch the video. Today we had to create something. Since I am in the superman group we could have chosen to do a canvas poster about Greta or write a persuasive paragraph about why we think she is a hero. I choose the persuasive paragraph. Here is the paragraph.

I think Greta Thunberg is a hero because she is trying to change the way the climate is. To some people she is not a hero but that the way they think. There is a lot of reasons why I think Greta is a hero. One of the reasons is that she is trying to change peoples minds about what kids think. I think it is very cool to see someone with a syndrome speak out about something and not get ashamed about what she is saying or that if people think that she is stupid by speaking out. There are some down things about what she did, like dropping out of school and leaving her friends but she did that for a change. 

She did one of her speech at the United Nations COP24 in Katowice. She was 15 years old when she gave that speech. She has also given speeches at other places. Her most famous speech was Climate Action Summit "You have stolen my dreams, and my childhood, with your empty words. And yet I'm one of the lucky ones,". Most people listened to her because they realised something that they should have realised before she had to speak out. The awards she won was time person of the year, Glamour Award for The Revolutionar, Right Livelihood Awar, Shorty Award for Best in Activis, Rachel Carson PrizeInternational,  Children's Peace Prize, Ambassador of Conscience Award and Nordic Council Environment Prize.

This is how I know that she is a hero. 

Maths DLO

For the past few weeks, we have been doing angles. We had to do a DLO about how we solve angles around a point, on a straight line and in a triangle. I made my DLO on biteable so it was easier to do. 

Culture Kete

Yesterday we started a new kete. The kete is about culture. We got given some words to find out the definition for. Here is the DLO.

 

Skittles

 Chromatography is a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates.

Aim: To separate the colours from the skittles by using chromatography.

Materials;

1.Skittles

2.Petri Dish

3.Water

Method:

Step 1:Place skittle around the edge of the petri dish.

Step 2:Carefully put water into the middle of the petri dish.

Step 3:Watch to see which colours each the middle first.

Findings:

Explain what happens to the colours? The colour comes off the skittles.

Why do they bleed out at the same rate? they didn't.

Why do the colours not mix together? The colours didn't mix because they have the same amount of sugar.

Fastest Skittle colours

Green: 4

Yellow: 3

Orange: 4

Brown: 8

Red: 3

100 Word Challenge

 Today we had to the 100-word challenge. We had to watch a video about what we are writing about. We had to write about St Patricks Day. I didn't have very much ideas so I just done something related to the garden gnome. Here is the video and my writing.

One day I was walking along a road thinking to myself what it would be like to be a garden gnome. When I was walking I kept seeing things pop up from the ground and then going back into the ground. I felt like I was being watched by something but little did I know that it was a leprechaun. I went down to the beach because I got bored of the road. I was walking along the sand and then suddenly I fell! All of a sudden I was on the ground laying on a clover. I still don’t know what I am to this day.

Rainbow Paper

 Rainbow Paper

Aim: To separate colours by using the process of chromatography.

Definition: Chromatography is a method of separating out materials from a mixture using a liquid.

Materials;

1. Chromatography paper

2. Water

3. Test Tube

4. Felt Pens

5. Test Tube Rack

Process:

Step 1: Get the paper

Step 2:  Get your felt pens

Step 3: Get test tube 

Step 4: Put water in the test tube.

Step 5: Put a dot on the paper

Step 6: Put paper in water

Conclusion:

What colours changed the most? Blue 

How many new colours could you see? none

Which colour travelled the furthest? Pink and Blue