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Friday 31 May 2019

science

Hurumanu - 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
This steering capability allows the vehicle to turn in place, a full 360 degrees which is a full turn, a four-wheel steering also allows the rover to swerve and curve, making arcing turns and helps drive over rocks like a four wheel drive.
Solar Panel
Solar panels are devices that convert light into electricity. They are called "solarpanels because most of the time, the most powerful source of light available is the Sun, called Sol by astronomers. ... A solar panel is a collection of solar cells.
Laser
Lasers in space are also used in astronomy. Researchers use ground-based lasers and optical interferometry to detect gravity waves
Camera
The rover has several cameras focused on engineering and science tasks. Some help us land on Mars, while others serve as our “eyes” on the surface to drive around.
Shovel, rock pick,drill
Square Shovel. With its sharp flat tips, square shovels are designed for digging in hard-packed soils. They're also ideal for scooping and moving soil, gravel, mulch, sand or rock.



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
The drawing and model must have:
  • 6 wheels
  • 1 camera
  • 1 tool at the front than 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
  1.  

  1.    
Surface
Moons and names
  1.  



Conclusion: Write about what you have learnt.

Friday 24 May 2019

Aim: To make a filtration plant using household materials.

Image result for filtration science experiment
Water Filtration Plant

What is filtration?


Filtration is separating solids from liquids by adding a medium through which only the liquid can pass. 

Examples are:

  1.  pool 
  2.  air
  3.  water
  4. oil

Materials

1.funnel
2.containor
3.filter paper
4.fine sand 
5.pebbles
6.scissors
7.dirty water
8.plastic bottle

Process - ( use verbs or doing words in each step )


Step 1

Cut the bottle..... just underneath the sticker

Step 2

Put the top half upside down ....... in the bottle

STEP 3

Add layers of .... sand and pebbles

STEP 4

Get 1 cup of dirty water ....... and pour in in the cup

STEP 5

Pour dirty water into ...... the bottle
Findings

Write a short sentence about the water every 1 minute. 
Include 'How much water has filtered through', 'How fast it is dripping through', and 'How clear the water is'.


Water colour: yellowish
Conclusion: in todays lesson we were trying to make clean water first you cut the bottle in half and then you put sand in there but not to the top and then you want to put pebbles in and then you put some dirty water in and you wait till all of the water has gone to the bottom of the container and then the water will be a tiny bit clean if you do it right.

science


In groups of 3 you are going to need to use your forensic knowledge to solve a crime. You must use the web page: Barefoot Burglar Evidence


  1. Determine which of the four suspects is the "Barefooted Burglar"? 
  2. What do you think was the motive for this crime? 
  3. Write the results of your findings and convince a jury of your peers


The Crime

At approximately 7:15 a.m., Friday morning, Mrs. King, the science teacher, thought something was fishy as she walked down the hall and noticed that her door was open. She walked into her classroom and immediately discovered that the small aquarium had been broken and her prized gold fish were gasping in the sink. Beside the broken aquarium were the shattered remains of the pink piggy bank that had been on the shelf above the aquarium. A can of blue paint was spilled on the floor. Footprints of a barefooted burglar led to an open window. Bits of a white powdery substance were found next to the broken, empty, piggy bank. The only other item found was a half-eaten large chunk of chocolate candy.

When the police arrived they immediately began to gather forensic evidence.





Dan the Man

Height : 176 cm
Alias: The General
Dan was wearing a woolen general's uniform with small holes when apprehended in the woods. He claimed to be gnawing on wood for moisture and insects to practice his survival training. His teeth look like a beavers from gnawing. His wife complains that she never has any baking soda due to Dan's compulsion about storing clothes in mothballs. He thinks the baking soda takes away the mothball smell, so he stuffs his pockets with the substance. Also, his wife reports that her giant chocolate kisses continually disappear from the candy cupboard. He blames their dog Patton, an English bull terrier, who patrols the neighborhood. His neighbors report that Dan loves the military. He was very regimented about playing taps on his bugle every day at sunset until an irate neighbor broke his bugle. Dan has been trying to save money for a new one.
Peg the Leg

Height: 152 cm
Alias: Lucky Lady
Peg is a librarian known for hanging horseshoes and four leaf clovers in her library. Employees say she is so superstitious she insisted on carpeting in the library instead of laying tiles so she would not step on the cracks. She wraps construction zone tape around open ladders so no one can walk under them. Cola bottles litter her office, which she drinks with chocolate chunks. Her teeth are chipped from knocking the bottles against them. She is always throwing salt over her shoulder for good luck and keeps a salt shaker in her purse. Her alibi is that she was busy closing open umbrellas the morning of the crime.



Jake the Jock


                                                                         Height 201 cm
                                                     Alias: Armchair Quarterback

                                                                                         
Jake the Jock is known for quoting statistics on every sport from boomerang throwing to sled dogging. His neighbors report that he is the neighborhood pitcher for baseball games. Last year a baseball hit him in the mouth and knocked out his front tooth. This has cramped his eating style of chocolate chunks, candied apples, and corn on the cob. His wife claims that on the morning of the crime Jake was rubbing his hands with cornstarch to keep them dry in preparation for an important baseball game.




Lou Lou

Height: 160 cm
Alias: Sweet Tooth
Lou Lou is so addicted to sugar that she never leaves home without it. She loves to bake sweet things and has an entire pantry full of sugar bins. She claims to have been baking her famous chocolate chunk cookies the morning of the crime (although not a morsel of cookie or chocolate chunk was left when the police arrived.) Lou Lou rarely wears shoes, which often causes her to slip and break things, especially her collection of ceramic pigs.

Evidence:
  • Fingerprints: Sticky, 'swirl' fingerprints were lifted from the aquarium and piggy bank. 
  • Footprints: The painted footprints were measured and were for 26 cm feet. 
  • Teeth: The chunk of chocolate candy was collected for examination. It appeared there were teeth imprints.
  • White Powder: The white powdery substance by the piggy bank was carefully placed in a plastic bag and taken to the forensic chemist for identification . It had very small grains and when mixed with Iodine it reacted making the colour brown. It did not have a smell.
Name: Dave
                        
Fingerprints: No.

Mouth prints: Has a chipped tooth.
Shoe size: 16
White powder: None found.
Name
Evidence
DanFingerprints:whorl
Mouthprints:
Shoe size:
White powder: baking soda
PegFingerprints: loop
Mouthprints:
Shoe size:
White powder:salt
JakeFingerprints:whorl
Mouthprints:
Shoe size:
White powder:corn starch
LouFingerprints:arch
Mouthprints:
Shoe size:
White powder: baking soda

Findings: ( what did you find. Summarise what you have written in the table above)




Verdict: ( who is the burglar and why)

Hurumanu - Things that fly

Hurumanu - Things that Fly



FLIGHT

Aim: To learn about flight and aerodynamics. 

  • In your groups of 3 you will make a paper plane and measure its distance and behaviour.
  • In groups of 3 you will make a water rocket and record its distance and behaviour. 
Image result for flight forces

Definition: 
the action or process of fliwq

4 forces of flight:

  1.   Gravity
  2.    Thrust 
  3.   Drag
  4.   Lift

Paper Plane:

Material:

1. Paper
2. paper clip
3. ruler
Steps:

1. get paper
2. fold it
3. fly it

Findings:

Plane Type
Distance
Behaviour
Normal
1 meter

Ailerons
2 meters

Paper clip


2.3 meters

Conclusion:
in todays lesson we learned how to make a paper plane and fly it we added aerodynamics to the plane the first flight was normal with 1 meter and then the second was 2 meters and the third was 2.3 meters.


THE FEET CAN MEASURE THE HEIGHT

THE FEET CAN MEASURE THE HEIGHT


The bones of the feet can tell a lot about a person. What do feet reveal about a person's height? Forensic anthropologists team up with law enforcers to help solve crimes.
Bones of the feet can reveal an interesting fact about an individual. Let's combine math with forensics to see how.

Image result for foot chart sizeImage result for foot to height ratio chart
Aim:  To use forensic science techniques to measure the height of a criminal.

Material:

  1.  yourself
  2. 1 meter ruler



Steps:

  1.  get a meter ruler
  2.  put the meter ruler facing upwards
  3.  put your finger where the ruler ends
  4.  put the ruler on top of that finger
  5. count the cm 

Findings:


Name
Foot  (cm)
Height (cm)
Lily28 cm179 cm
Sapphire26 cm164 cm
Makenzie22 cm145 cm

15 is the number used by investigators to determine a persons height based on their feet. This is because 15% of a persons height is the length of their foot.

Find out what percentage of your height is your feet. To do this you need to:
Divide the length of each person's foot by his/her height then multiply it by 100. 

15 is the number used by investigators to determine a persons height based on their feet. This is because 15% of a persons height is the length of their foot.