## 10/29/2015

### Observing human tissue

Today we have observed human tissue on the microscope to identify its structures. This time we have worked with samples from our oral mucosa and we have observed them at different magnifications.

Did you know that methylene blue helps us see the cells on the microscope better because it stains them?

## 10/28/2015

### Archimedes' principle review

Today we have been reviewing the Archimedes' principle and applying formulas related to the forces of upthrust and weight.

Did you know that ships float because the boat is less dense than the water, so it displaces a mass equal to its own instead of sinking?

## 10/22/2015

### Parts of the microscope

Today we have checked the parts of the microscope and we have had time to look at some samples.

Did you know that the earliest microscopes were called "flea glasses" because they were used to study small insects?

## 10/21/2015

### The Archimedes' Principle

Today we have worked with the Archimedes principle. We have been completing the dossiers and we have practiced the concepts of upthrust and weight as forces that act on bodies when they are immersed in fluids.

Did you know that Archimedes got his idea while bathing?

## 10/14/2015

### Calculating Weight

Today we have completed the report for the lab practice on mass and weight.

In this practice, we have tested the formula Weight = mass x gravitational acceleration, and we have represented the results in a graph.

While the results did not match with perfect exactitude, the results point out that there is correlation.

## 10/08/2015

### Athletes & Food

Today students have become teachers and have dictated each other information about the differences between the diet of a normal person and the diet of an athlete.

Did you know that, on average, men require about 10,000 kilojoules a day while women require between 8,000 and 8,500?

## 10/07/2015

### Measuring forces

Today we have started to work with dynamometers to measure weight and electronic balances to measure mass.

We are getting familiar with how these devices work and how they can be useful to measure forces.

By the way, did you know that the average value of gravity on Earth is 9.8 m/s²?

### Welcome!

Welcome to the Science blog for Institut Joan Mercader!

This course 2015-2016, we are going to show you some of the activities we do in the classroom.

We hope you enjoy it! :)