domingo, 19 de junio de 2016
miércoles, 4 de diciembre de 2013
ELEMENTS AND THE PERIODIC TABLE
- Playing with the Periodic Table
- Game 1 (to remember all the chemistry you have learnt) (go to "Chemistry")
- Game 2
The same video (1h long)(also with lyrics)
to remember the symbols and names of the elements
Full explanation of The Periodic Table
ALKALI METALS
ALKALI EARTH METALS
domingo, 1 de diciembre de 2013
ELEMENTS
FAMILIES OF ELEMENTS
KEY VOCABULARY: atom|| atomic mass|| element, family (of elements)|| metal||Periodic Table of the Elements
- Familias de elementos
- Tabla periódica interactiva || Otra versión
- Bilingual periodic table, tabla periódica interactiva bilingüe
PHYSICAL AND CHEMICAL PROPERTIES
METALS AND NON METALS
sábado, 5 de octubre de 2013
Studying Materials Scientifically 2
MATTER: STATES OF AND CHANGES
OPTIONAL: To get a direct grade rising in your test--> Read all the notes and create a poster about the States of Matter. It must include pictures and be nice.
OPTIONAL: To get a direct grade rising in your test--> Read all the notes and create a poster about the States of Matter. It must include pictures and be nice.
KEY VOCABULARY PART 3: solid || liquid || gas || plasma || random motion || change of state || melting || boiling || evaporation || condensation || sublimation || physical change
PHYSICAL AND CHEMICAL PROPERTIES OF MATERIALS
KEY VOCABULARY PART 4: chemical property || physical property || hardness || luster || texture || flexibility || reactivity || opaque
MATERIALS
Now it is your turn to teach new things to the classroom!!.
In groups, create, and then make a short presentation to the rest of the classroom, a poster about one of the following materials: WOOD, METAL, ROCK and PLASTIC. This must include, at least:
- Where is obtained this material?
- Physical and chemical properties
- Main uses and justify why humans use it for that
- Pictures
Studying Materials Scientifically 1
EVALUATING MATERIALS
- Evaluando a los materiales (versión española) .
- Graphing Data on Aluminum, Plastic, and Glass || Gráficos Aluminio,...
- Sample data table
- ANALYSIS:
PRODUCT LIFE CYCLEKEY VOCABULARY PART 1: life cycle || life-cyclediagram || rawmaterial || manufacturing ||usefullife || endoflifematerial
- Ciclo de vida útil de un producto (versión española) .
- Two Ways to Show the Life Cycle of a Glass Bottle || Dos maneras de mostrar el ciclo de vida de una botella de vidrio
- Student Sheet: Stages in the Life Cycle of a Product || Etapas en el ciclo de vida de un producto
- Green Chemistry Guidelines || Pautas de la química verde
- FINAL PROJECT: First option: In groups create a diagram of the life cycle for the drink container you were assigned. Do it in a poster and explain to the classroom for at least 5 min || Second option: Looking at "Stages in the Life Cycle of a Product" and using "Green Chemistry Guidelines" make a poster with a list of ways to reduce the negative enviornmental impact of this product. Explain it to the classroom for at least 5 min
miércoles, 11 de septiembre de 2013
What's the matter with matter?
KEY VOCABULARY
mass | volume | cubic meter | qualitative | quantitative | density | weight
What You Will Learn
• All matter has volume and mass.
• Volume is the amount of space taken up by an object.
• Mass is a measure of the amount of matter in an object.
• Weight is a measure of the gravitational force exerted on an object.
• Density is the amount of matter in a given space or volume.
Why It Matters
Understanding what matter is and how units are used to describe matter can help you understand the structure of the physical world. What do you have in common with a toaster, a steaming bowl of soup, or a bright neon sign? You might think that this is a trick question. It is hard to believe that a person has anything in common with a kitchen appliance, hot soup, or a neon sign.
Section Summary
• Two properties of matter are volume and mass.
• Volume is the amount of space taken up by an object.
• Mass is a measure of the amount of matter in an object.
• The SI unit of volume is the cubic meter, but in the metric system is widely used the liter (L). The SI unit of mass is the kilogram (kg).
• Weight is a measure of the gravitational force on an object, usually in relation to Earth. Weight is expressed in newtons (N).
• The ratio between mass and volume is called density. Density can be used to distinguish susbtances and materials, but mass and volume not.
THEORY: Matter || La materia
Lab: Measuring Volume || Calculando volúmenes (ver también--> libro traducido)
Lab: Measuring Mass, Calculating Density || Midiendo masas y calculando densidades (libro traducido)
Activity 9 • Measuring Mass, Calculating Density
ANALYSIS
mass | volume | cubic meter | qualitative | quantitative | density | weight
What You Will Learn
• All matter has volume and mass.
• Volume is the amount of space taken up by an object.
• Mass is a measure of the amount of matter in an object.
• Weight is a measure of the gravitational force exerted on an object.
• Density is the amount of matter in a given space or volume.
Why It Matters
Understanding what matter is and how units are used to describe matter can help you understand the structure of the physical world. What do you have in common with a toaster, a steaming bowl of soup, or a bright neon sign? You might think that this is a trick question. It is hard to believe that a person has anything in common with a kitchen appliance, hot soup, or a neon sign.
Section Summary
• Two properties of matter are volume and mass.
• Mass is a measure of the amount of matter in an object.
• The SI unit of volume is the cubic meter, but in the metric system is widely used the liter (L). The SI unit of mass is the kilogram (kg).
• Weight is a measure of the gravitational force on an object, usually in relation to Earth. Weight is expressed in newtons (N).
• The ratio between mass and volume is called density. Density can be used to distinguish susbtances and materials, but mass and volume not.
THEORY: Matter || La materia
Lab: Measuring Volume || Calculando volúmenes (ver también--> libro traducido)
Lab: Measuring Mass, Calculating Density || Midiendo masas y calculando densidades (libro traducido)
Activity 9 • Measuring Mass, Calculating Density
ANALYSIS
1. What material is each metallic solid made of? Use data from this activity tosupport your explanation.
2. Now that you have identified what each solid is made of, look at the hazards for each in
Table 2, “Information on Selected Solids,” in Activity7. What safety precautions must you take when working with these materials?
3. A block of wood is 4 cm wide, 5 cm long, and 10 cm high. It weighs 100 grams.
a. Calculate its volume.
b. Calculate its density.
c. Will the block sink or float in water? Explain. (Remember, the density of water is 1.0 g/cm3.)
d. Imagine cutting the block into two exactly equal halves. Calculate the volume, mass, and density of each piece.
e. How do the densities of the new pieces compare with the density of the original block? Use your answer to Question 3d and adiagram to illustrate your answer.
Table 3: Densities of Selected SolidsType of solid material || Density (g/cm3)Plastics High-density polyethylene (HDPE) 0.95Polystyrene (PS) 1.1Polyvinyl chloride (PVC) 1.3Metals Magnesium 1.7Beryllium 1.9Aluminum 2.7Titanium 4.5Zinc 7.1Iron 7.9Tungsten 19.4
DENSITY WORKSHEET || EJERCICIOS SOBRE DENSIDAD
lunes, 9 de septiembre de 2013
Lab. Safety. Handling Hazardous Materials
SAFETY FIRST
How should unidentified materials be handled?
KEY VOCABULARY
evidence | hazardous material | mixture | corrosive | radioactive | flammable | toxic
Labeling hazardous materials
Hazardous Materials at Home || págs del libro traducidas
- How should unwanted household hazardous materials be handled?
- (A14, q3) Make a list of the types of products you might find at home that could pose hazard.
- (A14,4) Using this table mark whether you agree or disagree with the statements. Then predict what you think other members of your group will say. Then discuss the statements with your group. Write a summary of the discussion in your journal.
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