Tech

This week for tech we learn about state of mater. State and matter exist in three state gas,liqiud and solid. 

Solid is the state in which matter maintains a fixed volume and shape.

Liquid matter is made of more loosely packed particles.

Gas is a state of matter that has no fixed shape and no fixed volume.

 

We made a DLO about state and matter which is gas,liquid and solid. We had to find ten picture ofliquid,gas and solid stuff. Lastly when we finish that we play a game of kahoot. 

Tech

Carefully read and understand this recording and planning guide so you are systematic in scientific thinking, experimenting, recording and interpreting.

Follow logically through each section so you are thorough in your science investigation steps.

Complete each section with details needed so you have carefully logged your project...and so an outsider can know and understand too.

What is a blood pressure you the force of the blood against artery walls when your heart beats.

Tech

Carefully read and understand this recording and planning guide so you are systematic in scientific thinking, experimenting, recording and interpreting.

Follow logically through each section so you are thorough in your science investigation steps.

Complete each section with details needed so you have carefully log your project...and so an outsider can know and understand too.

My science investigation TOPIC

Senses of the tongue - Feel, Taste, salt, sour, sweet, bitter

My investigation question

Can your tongue guess the taste when blinded?

Do the eyes take part in tasting?

Does everyone have the same taste buds?

Background research and knowledge I will explore as a backdrop to my investigation

Tech

To do the experiment, First, use a marker and label each item you will be testing. Measure about 4 or 5 drops of each item into the well plate and mark it for that item. Get a litmus paper and put both litmus paper blue and red at the same time, to see the result.

Acids And Base.

What is ph?

Ph is the measurement of how acidic and base water is

How do you measure ph?

The pH value can be measured using electrochemical measuring systems, litmus paper, or indicators and colorimeters.

What is the scale pH is measured on?

pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base

What ph level does water have is water acidic?

Neutral

What is the most acidic ph level?

0 is the most acidic level

What is the most basic ph level?

14 is the most alkaline level.

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If there is more hydrogen ion it is acidic, and if there is more hydroxyl ions it means it is alkaline. 6 is the weakest acid and 8 is the weakest alkaline. Hydrochloric acid is the acid that helps digest the food you eat.

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Aim or purpose: Test the pH levels in different household products


Well plate


pH strips


pH chart


dropper


baking soda


distilled water


window cleaner


toilet bowl cleaner


lemon juice


milk


orange juice


apple juice


vinegar


tea/coffee

Tech

Osmosis and Transpiration

Photosynthesis-Make food.

Plants Co2 carbon dioxide + H20 water Sunlight-Sugar of glucose

Parts of a plant:
Leaf
Stem
Roots

Flower

In which part of plant photosynthesis hallam.
special cells help to distribute food in different partst of plants.

Supplies
Water

Celery
Food color
Beaking

Task 2:
Pour 150 cm in the beaker.
Put food coloring in the beaker.
Put the celery into the beaker and wait.
Now cover the celery with a plastic bag.
Wait for half an hour or more, the more longer you leave the celery in there the more water it will absorb

Bubble tech

 For tech we learned about bubbles. We learn how to stack bubbles .

First we had to fill 250 ml on a beaker half full.Wieght 5 grams of sugar stir into the unti the sugar is dissolved.

Then measure 3 mls of glycerol and Measure 10mls detergent. Then Stir the contents in the beaker so all ingredients are thoroughly mixed thought.

Lastly we had to stack the bubbles we made stick and grab a straw then blow it then you can stack it.

Dissection of flower (hibiscus)

 For tech we  have learning about flowers.

We learn a new flower call hibiscus it has ten parts. Stigma, Style, Anther, Pollen tube, Sepal, Thalamus, Male gametophyte, petal,Ovule and gametophyte

I learn a new a flower call the hibiscus.

Tech

Today we went to tech for the first day. The year 7 did cooking class we had teacher call mr harkar we learn how to make banana smoothie and fruit salad. 

First we get all materials one person wash the dishes one dry and one put the dishes away.

Second we make fruit salad with apples,kiwi,orange, banana and watermelon. Then we sliced in to peace.

Lastly we made banana smoothie with banana yogurt and a mixer   

I enjoy cooking at tamaki college.