Topic 7: Osmosis and Transpiration

 L.I: To learn the science of osmosis and transpiration. This week for science tech we looked into Osmosis and Transpiration. Osmosis is when water moves from the bottom of a plant to the top. Xylem which is a tiny cell in the plant helps the water move upwards. Transpiration is when the sunlight evaporates the water. A thing we learnt during this lesson was photosynthesis. Photosynthesis is a process where the plants creates the food. Its made by carbon dioxide, water, sunlight, sugar or glucose and oxygen. 

Our activity was to find the xylem in a celery. First we pour 150 mls of water in a beaker and put ten drops of food colouring. Next we grab a celery and cut the end of the celery. Then we mix the celery into the food colouring water. After that we put the leaves of the celery in a bag and wait 30 minutes. After 30 minutes we open the bag and start cutitng the middle of the celery. Finally we look for the Xylem and take photos of it.

I found this activty fun because the xylem looks really cool with the food colouring. I also found the facts really interesting. 

Floating and Sinking | Science Tech

 L.I: To test the buoyancy of different objects 

For science tech we tested different objects to see their buoyancy. Buoyancy means how objects float or sink. We used objects like a wooden block, plastic block and more. We used a water bucket, ruler, different balls, different blocks and a digital scale. First we tested a tennis. The tennis ball semi-floated which means the tennis ball sunk and floated. The next ball we tested was a table tennis. The results for that was that the table tennis floated. The next object was a big marble and a small marble. They both sunk. After that we tested a golf ball. The golf ball sunk as well. Then we test a plastic block. The plastic block semi-float. There were 4 different sizes of wood block.  They all semi-floated. The final object was the polystyrene. The polystyrene floated.

I had fun with the activity. I also got surprised on how the objects reacted to the water. 

Trying out laboratory equipments | Tech

 L.I: To try using laboratory equipments 

 

Our topic for tech was trying out labortory equipments. In tech we used equipments in the lab and used it in a experiment. We did a cold and hot water experiement. 

The cold water experiment: The first step is we did was we pour 100ml of water into a beaker. The next step is to get 10 grams of sugar and put it on a petri dish. After that the next step is to place the petri dish on a weighing machine. After that put the sugar into the cold water. We used a stopwatch and timed our partners to see how long it would take for the sugar to dissolve. For me and my partner it took us 1 minute and 31 seconds. The temperature of the cold water was 24 degrees celsius.

The hot water experiment: The first step is that you pour 100ml of water into a beaker. The next step is to get 10 grams of sugar and put it on a petri dish. After that we placed a petri dish on the weighing machine. After that we put the sugar into the hot water. We used a stopwatch to time our partner to see how long it would take for the sugar to dissolve. For me and my partner it took us 35 seconds. The temperature of the hot water was 81 degrees celsius. 

I found this activity fun because I had fun using each equipment. I was also suprise on how fast the temparture

Science Exploration | Science Tech

 L.I: To explore the use of science equipments.

 

For Tech the Year 7's looked over science equipments. Our topic for our science lesson was Science Exploration. Our first task was to look around the lab and look for objects that the lab has but Panmure Bridge school doesn't. Our second task was to list down 20 science equipment. Our final task was to pour 40 metre litres(ml) into a beaker and then pour it into a measuring cylinder. We also used a dropper and dropped 3 metre litres (ml) into the measuring cylinder to make the measurment 43 metre litres (ml). 

Food tech

 L.I: To understand the process of cooking 

For food tech the year 7's created pizza. Mrs Hika gave us an instruction to get our materials and ingredients.  The ingredients we got were spinach, red onion, mushroom, red pepper, tomato sauce, cheese, bacon and a pizza base. 

First I layed out the sauce and spread it around our pizza base. Next Kruse (Cooking group member) diced the red onion and the red pepper. He also sliced the mushrooms. After that Kruse put the spinach on top of the pizza base. He then put the diced red onion and red pepper. Then Kingston (Cooking group member) diced the bacon and put it on the pizza. Finally we sprinkled the cheese on the pizza and then the pizza was put into the oven. 

When the pizza came out of the over we slid the pizza on to our chopping board and sliced it. We splited it and we starting eating it. The pizza was delicous and I felt like a professinal cooker. I would love to make pizza for my family because I think my parents would love the pizza that I make. 

Tech Reflect | Food

L.I: To understand the process of cooking 

For Food Tech we made Sagwala curry. Our first was to get our utensils. After getting our materials we went to get our ingredients. First we got the spinach. Then we got the tomato and the spices. Finally we got the onions and garlic. 

First we peel the onions and peel the garlic. Then we dice the onion and garlic. We then get the spinach and cut it. After all that we poor the tomato into a measuring cup and the spices into one measuring cup. Next we put the garlic and onion into the pot. We then poor oil and water. We turn on our stove and we start stirring. 

While stirring we poor in water and we put in the spinach. After that we keep on stirring the ingredients until the spinach sucks up all the moist. After finishing our curry we put rice and yogurt in our containers. 

The curry was alright. I didn't really like the yogurt. The sour cream taste kind of ruined the taste of the curry. Overall I think my group and I did a good job creating the curry. 

Tech Reflect

L.I: To understand the process of cooking 

The Year 7's created hot cakes for food Tech. My group gather our ingredients and utensil. One person in out group had to get 1 cup of flour and 1 Tea spoon of baking powder. Another person gets 3 quarters of milk and they have to crack 2 eggs to get the egg whites. The third person has to get the bananas and mash it up. 

I mixed the flour and baking powder. Spelman whisked the eggs and the milk. Farzana grabbed all the mashed bananas and the eggs and milk into the big bowl with the flour and baking powder. After mixing it all up I poured the oil onto the pan. 

We started pouring the mixture onto the pan. After waiting one minute we flipped the cake and it turned out good. We made about 13 hot cakes and spilt it between us. We topped it of with vanilla ice cream and cranberry sauce. When we ate it, it tasted so delicious. 

This is the best thing I've ever made currently. To be honest I would like to create more at home. I had fun creating hot cakes.