How animals survive the winter

We want to show how blubber keeps animals warm.
We fill a container with ice cubes and water then in a plastic bag some vegetable oil and cotton.
Finally we put both hands, one in the oil and one into the ice water.
They all agreed that one hand was freezing and their hand in the oil was warm.

Cool things to look at with a microscope

We did a workshop today about using simple microscopes to see a variety of biological, chemical and physical objects.  Here is a link to the slides.

Link:  Ideas Powerpoint Show

We looked at things like plant cells, pond creatures, crystals, material, micrometeorites and LCD screens.












We also looked at some ideas for experiments for younger children.  I have posted the links to ppt documents in case you want to translate them into Spanish.  They relate to the activities in the powerpoint show above.
Link:
Infantil/Primaro worksheets/fichas 1
Infantil/Primaro worksheets/fichas 2
Parachute men, cabbage jelly, flying seeds, sunlight energy, puddles, fast cars, floating boats, robotics and different materials.  I hope these are useful!
Jenny

Hoy hicimos un taller sobre el uso de los microscopios del cole para ver una variedad to coses biológicas, químicas y físicas.  Aquí es un link para las diapositivas:

Link:  Ideas Powerpoint Show

Miramos a los células de una planta acuática, bichos del agua del Arroyo de Valdelatas, cristales de sal, tela, micrometeoritos y como funcionen las pantallas LED.

Para los de infantil y primero de primaria, incluye algunos experimentos con fichas.  Arriba son las fichas en inglés en powerpoint si quieres traducirles. 

Son sobre:

Construir paracaídas

Gelatina que cambiar color con pH

Semillas que vuelen

La energía del sol

¿A dónde van los charcos?

Rampas con coches

¿Cuántos canicas para hundir un barco?

Robótica súper sencilla

Y Propiedades de materiales.

¡Espera que sean útiles!

 Un saludo

Jenny

Worksheets to challenge all levels

Hello All,
I've not forgotten about my Blog, I've just been very busy at work and I teacher older children.  I have however continued writing and I have become a big fan of Level Assessed Tasks.  Here is one for early secondary that I have written:
Link to pdf:  Particles and phase changes
Here is another more sexto one: from TES:
https://www.tes.com/teaching-resource/new-ks3-assessment-task-plants-11314566

I think they are great because students can choose how much or how little they do and they are really easy to grade, just tick off the parts that they have done.  If you have any requests, I am now very fast at writing these.

There are loads of this style of task worksheet available on the internet.

Tell me what you think.
Jenny

Magic Milk Experiment

Milk is made up of minerals, proteins and fats. When the dish soap enters the milk,  the fat begins to break up. The soap molecules run around and try to attach to the fat molecules in the milk.
The fat and proteins are super sensitive to changes in the milk and so when the dishwashing liquid is added a chemical reaction occurs. The soap and fat work  to join together, which causes the movement.
Normally this process would be invisible to you, but the food coloring helps you to see all of the movement taking place.

Why are some coins magnetic?

Coins were traditionally made from a bronze alloy of copper, tin and zinc. 
Lately, they have been made from copper-plated Steel; so the new copper-plated steel coins  are attracted to magnets. The iron content in the steel core is what makes them magnetic.

Can rocks float?

Not all rocks sink.
Pumice floats on water because it´s formed due to quick cooling of lava on the Earth Surface.
It has many holes in it (gases trapped inside when it was being formed.)
It is full of bubbles and it has less density.

Making models of atoms and molecules

It was raining and we made molecules. The balls are atoms; they are going to be connected to make molecules.

If you don´t have a molecule kit, you can use  white balls and toothpicks.

I.e.to make a hydrogen molecule ( two white balls and a toothpick.)

Test Biodegradable Products in an indoor composter

We set up an experiment to determine the biodegradability of different plastics and substances: 

100% biodegradable plastic shopping bag

 25% biodegradable garbage bag

Cardboard

Cotton

Have you ever seen something labeled "biodegradable" or "compostable" and wondered what that means? 

Two months later we will collate the data, answer the questions  and create a graph. 

Discussion questions:

·         Which materials were the most biodegradable? 

·         Which materials were the least biodegradable?

Why do you think the water keeps its shape at the moment the balloon is popped?

Molecules in what state are strongly attracted to each other but can change positions?

Today in class we´ve investigated water on a molecular level.

We´ve recorded a video: a water balloon popping in slow motion. The water in the balloon keeps its shape when it´s popped for a few seconds.

Density rainbow

The experiment works because the liquids used have different densities. The liquids with higher densities weigh more than the liquids that are less dense. So the less dense liquids will sit on top of the denser liquids.

How to make a rain cloud

Carefully add a layer of shaving cream to the water.
The shaving cream represents a cloud and the water is the atmosphere. 

Simply add a few drops of blue food colouring to the shaving cream. The weight of the food colouring will start to push through the shaving cream and fall down through the water; (the darker grey clouds were heavy with water droplets or rain, the food colouring.

)

SNOW MELTS MUCH FASTER THAN ICE CUBES

We have a lot of snow right now. It has been snowing!!!!!!

EXPERIMENT: You ONLY need water in different states.

Ice is the solid form of water amd water molecules are stacked together.

Snow that freezes into a crystallized form. (There is a lot of air around each cristal)

Soda geyser

The eruption is caused by a physical reaction, rather than any chemical reaction. 

The conversion of dissolved carbon dioxide to gaseous carbon dioxide forms rapidly expanding gas bubbles in the soda, which pushes the coke contents out of the bottle.

The human body is electrically conductive!!!!

A piece of fruit or vegetable can  also conduct electricity, as basically anything else that’s organic. We have  created a fun  project: a digital fruit piano.
What sound does a banana make??????

How much sugar is there in a can of soda? (Density)

If you put a can of regular coke or pepsi into a container with water, it will sink. While, if you put a can of diet coke into the same container, it will float.

WHY?

 Coke has more mass because of the 35 grams of sugar it contains, compared to the 125 milligrams of sweetener in a can of diet coke.

The cans of soda have exactly the same volume, or size. But their density is different  due to what is dissolved in the soda. If you look at the nutrition facts on a can of regular soda, you will notice that it contains sugar...a lot of sugar.

Rethink your drink!!!!!