Volcano Eruption | Science

 These past couple of weeks, we have been learning about volcanoes. We also have made replicas of real volcanoes of our choice from around the world. My group has chosen a volcano from the Philippines named the Taal Volcano since it recently erupted. 

Project - Taal volcano 

It is a caldera volcano and is currently active as of now. 

Different types of volcanoes: 

• A caldera forms when a volcano erupts and then collapses, this creates a large depression.  

Types of rock formations that form around the volcano.

• Olivine Basalt which is a type of mineral.

• Andesite

Plan

Make a border around the volcano and make it look like the volcano looks like it’s submerged in water.

We need to make it slightly taller than the bottle we’re going to use while still making it look like just

the very top of the volcano. 

Making the base out of cardboard, we will roughly cut out the shape of the volcano.

Reaction: Elephant's Toothpaste 

Hydrogen Peroxide and Potassium Permanganate -

Turns brown as a chemical reaction between the oxygen and the Potassium Permanganate.

Put warm water in a bottle, then put Potassium Permanganate crystals. Mix. 

Add 1-2 drops of detergent to the mixture. 

Find an open space.

Pour Hydrogen Peroxide in a measuring cylinder, pour till satisfied with the amount.

Then, quickly pour the Hydrogen Peroxide into the bottle, wait for the reaction. 

DNA Extraction | Science

Hello everyone! this past week we have learned about DNA and have conducted an experiment, extracting DNA from kiwi fruit.

Aim:

- Our aim was to extract DNA from a Kiwi fruit.

Equipment:

- Water, Beakers, Sand, Spatula, Ethanol, Kiwi Fruit, Sandwich bag, Bunsen Burner, Heat Mat, Gauze Mat, Tripod, Test Tube, Dishwash Liquid, Glass Rod, Cloth.

Method:

Step 1 

( Result )

- Put the peeled kiwi fruit in the sandwich bag, add sand and water and mash it.

Step 2

- Pour the kiwi fruit through the cloth and collect the juice in a beaker.

Step 3

- Put water in a beaker and heat it up until it's warm.

Step 4

- pour the Kiwi fruit juice into a test tube with two drops of dishwashing liquid.

Step 5 

- Put the test tube in the beaker with warm water and let it rest.

Step 6

- pour the ethanol into the test tube and mix gently using a glass rod.

Step 7

- Wait until the DNA separates and collect using a spatula.

Discussion:

- We used a bit of dishwashing liquid with the crushed kiwi fruit to break down the walls and separate the cells of the kiwi fruit from each other. We then poured in the ethanol which separated the DNA from the kiwi fruit.