Libros de texto gratuitos y descargables. TEXTOS MAREA VERDE

En este enlace puedes acceder a los libros de texto gratuitos y descargables editados por la Marea Verde. Si eres profesor y quieres participar en la edición de los textos de otros nivleles puedes hacerlo también desde el mismo enlace:

• Libro de texto de Ciencias Naturales de 1º ESO.
• Libro de texto de Ciencias Naturales de 2º ESO.

Dissection of a fish

Look at this link to prepare your fish dissection.

MULTIVERSOS

Después de ver el documental contesta a las cuestiones:

1. ¿Qué es el multiverso?
2. Explica los diferentes niveles de multiverso existentes. Imagina un ejemplo para explicar cada uno.
3. ¿Qué razones se aportan explicar cada uno de los niveles posibles?

Objects of the Universe

Use this link to access to a presentation about different objects of the Universe. Write a Title and a short description of each one. 
* Investigate and choose the information you think is better to describe the picture.

Cell size and scale

Remember that small and big quantities are expressed with scientific notation. Practise this scientific notation with this link.
Using the link cell size and scale answer the questions:

• How many paramecium could hold one millimeter square?
• What is the size of red blood cell in nanometers?
• How many rhinovirus could hold a red blood cell? And a grain of rice?
• How many carbon atoms could hold one millimeter square?

THE SCIENTIFIC METHOD

In this post I would like to introduce you in the scientific method. This is going to be important for us because  I want to show you how to answer question from a scientific point of view. Lets have a look:

1. To start we will have a question to answer.
2. We will need to analyze this question, and this means: be sure of where are the limits of this question, if  it is posible, divide it in more simple problems.
3. We raise hypothesis for every single problem.
4. We design a research to solve them (They may consist in experiments or just a bibliographic investigation).
5. We try to determine which of the hypothesis were true and which were false.
6. We raise conclusions and try to solve the original problem.

List of questions to solve using this method:

• Explain why is true or false the next sentence: " In the next few years will be posible to fly to the nearest star".
• Why summer is hot and winter is cold?