Science

‘’ Week 4 and 5: Waves

This week we will be learning about waves. After learning the basic parts of a wave we will be looking specifically at light and sound waves.

Video showing difference between transverse and longitudinal waves

Video of Waves, transformation and development.

Notes:

Many types of energy travel in waves. Either a transverse wave (like light),  Lightwaves go up and down as they travel. Or longitudinal waves (like sound), sound waves compress and stretch as they travel. Crest - top of the wave. Trough - bottom of the wave. Amplitude - Height of the wave.  Wavelength -Horizontal distance between the crests or between the troughs of two adjacent waves Pitch - how high or low sound is Transverse - A wave that moves the medium in a direction perpendicular to the direction in which the wave travels Longitudinal - A wave in which the vibration of the medium is parallel to the direction the wave travels Investigating light What is the fastest way to travel through the universe? - A light vacuum. What is light speed? - 299 792 458 m / s Define optical science? - Study of light. What is fibre optics? - A thin piece of glass or plastic light travels through. Name the three instruments that help us see very small objects or objects far away. Most things with lenses. 1 - Telescope  2 - Magnifying glass 3 - Microscope

Day 1 Activity: What is sound?:

A: Crest

B: Wavelength 

C: Amplitude

D: Trough 

What type of waves are the following examples? Transverse or longitudinal?

A slinky?  Longitudinal

A rope? Transverse

Car headlights? Transverse

Stereo sound waves? Longitudinal

Day 2 Activity What is light:

Light moves in straight lines, it can not bend around corners. This creates shadows and means that light can travel through some things but not others. We can describe objects as being opaque, translucent or transparent.

Identify whether the following objects are opaque, translucent or transparent:

1. Window - transparent 
2. Cloud - translucent 
3. Can of coke - opaque
4. Mirror - opaque
5. A dog - opaque
6. A glass of milk  -opaque
7. Frosted glass - translucent
8. A desk - opaque 

1. Moon - No
2. Sun - Yes
3. Mirror ball - No
4. Match - Yes
5. Cell Phone - Yes

Prime Ministers of New Zealand

Jenny Shipley

New Zealand's 36th Prime Minister

Date of Birth: 4th February 1952

Full Name: Jennifer Mary Shipley

Before she was prime minister:
Attended Marlborough Girls College.

She qualified in 1971 as a teacher through the Christchurch College of Education and taught in New Zealand primary schools until 1976.

Education:
Christchurch College of Education.

Family:

Jenny Shipley’s husband is Burton Shipley, they have two children together, Anna Shipley and Ben Shipley.

Politics:
Jenny Shipley is a New Zealand former politician who served as the 36th Prime Minister of New Zealand from 1997 to 1999. She was the first female prime minister of New Zealand, and is the only woman to have led the National Party.

Helen Clark

New Zealand's 37th Prime Minister

Date of birth: 25th February 1950

Full Name: Helen Elizabeth Clark

Early Years:
Helen Clark was the eldest of four daughters of a farming family. Her mother, Margaret McMurray, was a primary school teacher. Her father, George, was a farmer. Helen Clark studied at Te Pahu Primary School, at Epsom Girls' Grammar School in Auckland and at the University of Auckland, where she majored in politics and graduated with an MA (Honours) in 1974. 

Education:
University of Auckland.

Family:

Helen Clark is married to her husband, Peter Davis.

Politics:
Helen Clark is a New Zealand politician who served as the 37th Prime Minister of New Zealand from 1999 to 2008, and was the Administrator of the United Nations Development Programme from 2009 to 2017. She was New Zealand's fifth-longest-serving prime minister, and the second woman to hold that office.

Hurumanu Poem

Today in power to the people Hurumanu we were writing poems form a template, here is the poem I wrote. Jasmine-
I look in the mirror and what do I see?

A funny, thoughtful, bold person looking back at me.

I’m really good at cheering people up.

And love doing creative things.

I spend lots of time thinking about the future.
And can’t wait for something that is an adventure.      

I could improve on believe in myself 

And controlling my temper is hard for me, 

But I know if I try, I’ll be the best I can be.

The Greenhouse Effect☂

Aim: To look at climate change and the greenhouse effect

Materials📋

1x Plastic bottle

1x Teaspoon Baking Soda and Citric Acid

1x heat lamp

1x Thermometer

100 ml water

1x rubber bung︵‿︵‿︵‿︵‿︵︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵　　

Steps📝

1. Add 100 mL of water to each of the beakers.
2. Prepare your lamps. Set them up next to each other with the necks angled
   so they will just fit over the tops of the bottles.
   Turn them on so they are ready.
3. Add Baking Soda mix to one of the beakers,
   and immediately cover both beakers with cling a rubber
   bung and thermometer. A tight seal around the edge will work best,
   and make sure thermometers are left visible so you can record the
   temperature.
4. Have students record the starting temperature –
    it should be the same in both beakers.
5. Turn the bottles so the thermometer is visible.                             
6. Record the temperature in both beakers every
   5 minutes for 50 minutes.
   

Minutes	Bottle 1: Water	Bottle 2: CO2 Gas
0	21	21
5	25	18
10	27	22
15	31	25
20	34	25
25	34	28
30	36	30
35	DNF	DNF
40	-	-
45	-	-
50	-	-

︵‿︵‿︵‿︵‿︵︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵‿︵　　

  

The Water Cycle

This week in science hurumanu also known as Climate Chaos we cut out 10 hexagons and explained why they are together.

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

Water Cycle is connected to Transpiration because transpiration is a step of the Water Cycle.

Transpiration and Water Vapour are connected because they are all the action of water vapour going up.

Water Vapour and Evaporation are connected together because they are from water (Oceans, Lakes, Rivers, Ponds) and the watering plants.

Water Vapour and Condensation are connected by when the water vapour rises it forms together to make clouds which is also part of the water cycle.

Evaporation and Condensation are connected because (evaporation) the water evaporates and rises and it clumps together to make clouds (condensation).

Condensation and Hurricanes are connected because Hurricanes can change the climate and the surface of the earth which can lead to disrupting weather patterns.

Water Vapour and Precipitation are  connected because water vapour goes up into clouds\\

✧･ﾟ:Solar Energy

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Aim: To learn about how solar energy is used.

Hypothesis: I think that black will attract the most heat.

Materials:

1. Solar Heater
2.  Thermometer
3.  Tinfoil
4. White cup 
5. Clear Cup
6.  White Paper
7. Black Plastic 
8. Water

Steps

1.  Get your materials.
2. Set up your lamp.
3.  Cover the cups one cup in tin foil, and one cup in black plastic.
4.  Place the cup with tin foil on a tinfoil sheet, Place your clear cup with black plastic on to black plastic and finally put your white cup on a white piece of paper. 
5.   Put all the cups in a line.
6. Place them in front of the lamp.
7. Record every temperature every 15 mins.

Findings:

Time	Cup 1 White	Cup 2 Black	Cup 3 Tinfoil
0	16	16	16
15	19	21	21
30	20	22	20
45	20	24	21

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In pairs rate the livability of coal vs solar energy.

Comparing Coal energy with Solar energy ( Rate; 1 = poor to 10 = great)

Factor	Solar	Coal
Livability	10	4
Sustainability	10	2
Accessibility	10	3
Cost	9	5
Your choice...	10	1

Conclusion:

1. Solar power is more sustainable than coal is.

2. Sun, wind & water are all renewable energy.
3. The color black attracts the sun & heat.

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