DNA Extraction

 DNA Extraction 

Aim: to extract DNA from Kiwifruit

Equipment: 

• Kiwifruit
• Water
• Beakers
• Sand
• Spatula
• Ethanol 
• Sandwich Bags
• Bunsen Burners
• Heat Mat
• Gauze Mat
• Tripod
• Test Tube
• Test Tube Rack
• Dishwash Liquid
• Lighter
• Glass Rod
• Cloth

Method:

• Step 1 Open the Sandwich Bag and put half a Kiwifruit into the bag. Put Sand and Water into the Bag. 
• Step 2 Squish the Kiwifruit until there are no chunks left.
• Step 3 Once squished, pour the Kiwifruit through the cloth to collect the juice in the beaker. Then transfer the Kiwifruit into the Test Tube.
• Step 4 Pour 10ml of Water into the Beaker. Then, put the beaker on top of the Tripod and warm the water. (Take it off when you see bubbles forming on the bottom of the beaker)
• Step 5 Pour 2 drops of Dishwashing Liquid into the Test Tube that has the Kiwifruit juice. Then rest the Test Tube in the Beaker with warm water.
• Step 6 Add the Ethanol into the Tes Tube and watch the DNA separate and collect with Spatula.
  
  
  
  
   

Alkaline Metals

What is an Alkaline Metal? - Where are they on the Periodic Table

• An Alkaline Metal is any of the elements on the left-hand side of the Periodic Table. It includes Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr). These elements are very reactive. 

What Reaction did we do yesterday?

• Observation: When it was placed into the water the metal was fizzing and did give off fire sparks. Within the next 5 Seconds, it exploded and looked like a small firework. After the explosion, it gave off a strong smoke and smell. 
• Reactants: Sodium + Water
• Products: Sodium Oxide + Hydrogen Gas
• Chemical Equation: Sodium + Water -> Sodium Oxide + Hydrogen Gas
  (NA + H2O -> Na2O + H2)

Why do these metals react this way?

• They only have one electron in their outer shell that reacts very easily.

Heating Zinc Oxide

 Heating Zinc Oxide

Aim: What change happens when we heat Zinc Oxide?

Equipment: 

1. Bunsen Burner
2. Heat Mat
3. Tripod
4. Safety Glasses
5. Crucible (Small Ceramic Bowl)
6. Crucible Holder
7. Zinc Oxide

Results: 

As it was heating up the colour of the Zinc Oxide turned into a Neon Yellow and then when the powder cooled down it turned into its original colour, White.

Discussion: 
When you heat up the Zinc Oxide it loses some of its Oxygen. During this process, Electrons change levels which causes it to change colours.

My Element 🌿

My Element

If I were a metal element I'd like to be Mercury and my symbol is Hg

My atomic number is 80 which means I have 80 protons in my nucleus and 80 electrons around my nucleus.

At room temperature (20C) I will be a Liquid 

My melting point (the temperature when I turn from a solid to a liquid) is -38.83 °C

My boiling point (the temperature when I turn from a liquid to a gas) is 356.7 °C

I was first discovered by Ancient Chinese, Egyptians and Hindus and had been found in Egyptian tombs dating back to about 1500 B.C.

I am found in nature as Cinnabar

My uses to humans are: Mercury can be used to make thermometers, barometers and other scientific instruments.

Some interesting things about me are The symbol Hg that mercury is known by comes from its Greek name, hydrargyrum, which means "liquid silver" — to reflect its shiny surface. 

Can Experiment

 Can Experiment

Aim: To see what happens when you put a heated can in cold water

Hypothesis: The can will get squashed when put into the cold water

Equipment:

• Cold & Hot Water
• Can
• Element
• Ice Cream Container
• Tongs

 Method:

1. Fill the can with hot water, about a quarter way
2. Fill the Ice Cream Container with cold water, ice-cold water if possible.
3. Put the can on top of the hot water and wait for it to steam.
4. Once it starts to steam put it straight into the Ice Cream Container that is filled with Cold Water
5. Pop!

Results:

My groups experiment did exactly what it was supposed to do on the first try.

The can was squished when it hit the cold water.

Discussion: 

Before heating, the can is filled with water and air. When boiling the water, the water changes states from a liquid to a gas (Water Vapor) The water vapor pushes the air that was originally inside the can out into the atmosphere. When the can is turned upside down and placed in the water, the mouth of the can forms an airtight seal against the surface of the water in the bowl. In just a split second, all of the water vapor that pushed the air out of the can and filled up the inside of the can turns into only a drop or two of liquid, which takes up much less space. 

❝ The Water Cycle₊˚.💧

❝ The Water Cycle₊˚.💧

This week for Climate Chaos we had to cut out 10 hexagons and explain how each of them went together.

• Water Cycle + Transpiration 

Transpiration is a step of the water cycle.

• Transpiration + Water Vapour

They are all the action of water vapour going up. 

• Water Vapour + Precipitation 

Water vapour goes up into the clouds and it falls ( precipitation ) in sleet, snow, rain, hail etc

• Precipitation + Acid Rain 

Carbon Dioxide can cause Acid Rain when it goes up in the cloud

• Acid Rain + Carbon Dioxide

Causes Acid Rain when it goes up into the clouds.

• Water Vapour + Evaporation 

They are from water (Oceans, Lakes, Rivers, Ponds) and the watering plants.

• Water Vapour + Condensation 

When the water vapour rises it forms together to make clouds which is also part of the water cycle.

• Evaporation + Condensation 

Because (evaporation) the water evaporates and rises and it clumps together to make clouds (condensation).

• Hurricanes + Condensation 

Hurricanes can change the climate and the surface of the Earth which can lead to disrupting weather patterns.

• Water Vapour + Precipitation

Water vapour goes up into the clouds

Mars - NOT FINISHED

Mars

How to get to Mars

Aim: To learn about Mars exploration.

1. Rover facts
2. Design, Draw and Make a Rover
3. Mars facts

1. Rover facts:


What are the 5 parts for?

Link: Rovers 5 parts


Fill in the table below.

Name:	Purpose:
Wheels	The rover can drive over thigh-high rocks as tall as 1 1/2 times or 78-centimetres
Laser	SuperCam fires a laser at mineral targets that are beyond the reach of the rover’s robotic arm and then anal?>cxz]=emental composition.
Camera	Take pictures, looking up and down, during descent through Martian atmosphere.
Shovel, rock pick,drill

6.5

2. In groups of 3, you will Design, Draw and Make a Mars Rover out of Lego Technics.

Materials:

1. Lego Technics
2. A4 paper
3. Pencil
4. Ruler
5. Eraser

1. The drawing and model must have:

• 6 wheels
• 1 camera
• 1 tool at the front that includes a shovel, pick and drill.
• 1 solar panel
• 1 laser that points at the ground

 ( Take a photo and upload  your Mars rover onto your blog.)

3. Mars Facts

Link: Facts

You will need to find out the following:

Fact	Earth	Mars
Picture of planet
Length of 1 year	365 days
Length of 1 day	24 hours
Distance from the sun
Distance from Earth.
Gravity:
Colour:
Temperature	-88 to 57 C
Rainfall
Atmosphere
Surface
Moons and names

Conclusion: Write about what you have learnt.

Psychology - Task 3

Task 3 

Aim: I want to find out if there is a popular number in the class.

Equipment:

Paper.

Pencil or Pen.

People.

Method: 

1. Get a piece of paper and pen or pencil.

2. Go around the class and ask them to pick a number between 1 - 20.

3. After you have finished, record the data.

Results:

Reflection:

Seven was the most popular in the class, I think that is because seven is a holy number also known as a lucky number to most. Four, nine, twelve, fourteen, sixteen, eighteen, nineteen, were the least favourite number in the class. I think that is because most are not really lucky numbers.

Psychology - Task 19

Aim:

I want to find out how fast different people’s reflexes are.

Equipment:

• Ruler
• A Person.

Method:

1. Get a subject to open their hand.
2. Hold a ruler above their hand with the zero level with the top of their hand.

Results:

Nature - 11

attempt 1: miss

attempt 2: miss

attempt 3: miss

attempt 4: miss

attempt 5: miss

attempt 6: miss

attempt 7: miss

attempt 8: miss

attempt 9: miss

attempt 10: 29 cm

Kaedun - 11

attempt 1: 11 cm

attempt 2: 15.5 cm

attempt 3: 20 cm

attempt 4: miss

attempt 5: miss

attempt 6: miss

attempt 7: 17.5 cm

attempt 8: miss

attempt 9: 21.5 cm

attempt 10: 11 cm

Sharney - 11

Attempt 1: miss

Attempt 2: 28 cm

Attempt 3: miss

Attempt 4: 26 cm

Attempt 5: 26.5 cm

Attempt 6: miss

Attempt 7: miss

Attempt 8: miss

Attempt 9: miss

Attempt 10: miss

Nikora - 12

Attempt 1: Miss

Attempt 2: 19 cm

Attempt 3: Miss

Attempt 4: 29 cm

Attempt 5: 23 cm

Attempt 6: 30 cm

Attempt 7: 30 cm

Attempt 8: 28 cm

Attempt 9: 27 cm

Attempt 10: 23 cm

Ryan - 11

Attempt 1: 28 cm

Attempt 2: miss

Attempt 3: miss

Attempt 4: miss

Attempt 5: 30 cm

Attempt 6: 17.5 cm

Attempt 7: 30 cm

Attempt 8: miss

Attempt 9: miss

Attempt 10: miss

Hayley - 10

Attempt 1:miss

Attempt 2:miss

Attempt 3:23 cm

Attempt 4: miss

Attempt 5: miss

Attempt 6: 20. 5 cm

Attempt 7: miss

Attempt 8: miss

Attempt 9: 23 cm

Attempt 10: 15.5 cm

Talia - 11

Attempt 1: miss

Attempt 2:  16.5 cm

Attempt 3:  30 cm

Attempt 4: miss

Attempt 5: 18 cm

Attempt 6: 16.5 cm

Attempt 7: miss

Attempt 8: 11.5 cm

Attempt 9: 17 cm

Attempt 10: miss

Reflection:
During this experiment I noticed noticed some of our class mates had different moods. Some where tired,
happy, angry. I think their mood really changed their reflexes, as you can see some people got around 10 -
30 cm.

Science Equipment

Conical Flask

A conical flask is used for mixing liquids.

Measuring Cylinder

A measuring cylinder is used for measuring liquids.

Beaker

A beaker is used for holding liquids.

Funnel

A funnel is used for pouring liquids.

Thermometer.

A thermometer is used for measuring the heat.

Test Tube Rack

A test tube rack is used for holding Test Tube.

Spatula

A spatula is used for transferring chemicals.

Test Tubes.

Test tubes are used for holding chemicals