Presentación del proyecto "Experimentos MEMP" en el Congreso Internacional de eEstudiantes en Jaén, desarrollado en el marco del Erasmus+ "ATELIER for STE(A)M". Colegio anfitrión: Pedro de Poveda. #ATELIERforSTEAM

1. International Student Congress
ATELIER for STE(A)M
Colegio Pedro Poveda, Jaén, 20 a 27 de abril de 2018
Autoras: Mafalda Martins Dos Santos (coordinadora),
María Fuster Cuesta, Paola Arranz Alonso y Helena
Cardo Alegre
3º ESO
Coordinadores: Miguel Ángel Queiruga Dios y
Mercedes Saiz Ruiz
PHYSICAL AND CHEMICAL WATER REACTIONS

2. PHYSICAL AND CHEMICAL WATER REACTIONS

3.  Know water properties
 Develop experiments using water and tests to demonstrate and explain qualities of water
 Seek and disseminate information about the importance of water, its composition, what
impacts our lack of it can have on our lives
OUR OBJETIVE

4.  Solvent action
 Electric conduction
 Cohesion force between its molecules
 High adhesion strength
 Capillarity
 Surface tension
 Great specific heat
WATER PROPERTIES

5.  More than 70% of the world's population has access to drinking water, but 30% of the world's
population does not have access to safe drinking water
 In Spain, the daily water consumption per person is 144 liters per person when the amount that
can be survived is 6 liters per person
 Washing for 5 minutes is equal to the amount of water consumed in an inhabitant in an
underdeveloped country.
RESEARCH AND DATA

6.  Adaptive Problem-Project Based Learning
 Citizen science
 Researching
 Inquiry Based Learning
 Cooperative Learning
How we work…

7.  Teaching-learning methodology based on projects in which the student
chooses the topic.
 Project developed in team made up by students.
 50% research - 50% spred
Adaptive Problem-Project Based Learning

8. Citizen science

9.  The values obtained of pH, show a slightly acidic water (with respect to the usual values of
natural water).
 The concentrations of chlorine in the water are well below the maximum values allowed.
 No taste or odor was observed in the samples.
Researching

10. Researching

11. Researching

12.  Realizing experiences
 Analyzing relations between variables
Inquiry Based Learning

13.  Materials:
Oil
Effervescent tablet
Water
Food coloring
Jar
 Process
 Explanation:
The oil stays on top of the water because it has a lower density. When we add the effervescent
tablets, they begin to dissolve creating a gas. When the bubbles reach the edge of the bottle, they let
the gas escape and the water comes back down
LAVA LAMP

14.  Materials:
Diaper
Scissors
Glass
Water
 Process
 Explanation:
The diapers have a component called sodium polyacrylate whose appearance is a
white powder capable of absorbing large amounts of water. When it meets the
water it reacts and absorbs it creating a kind of "snow"
ARTIFICIAL SNOW

15.  Materials:
Water
Glass
Piece of paper
ink
 Process
 Explanation:
Technical Chromatography that separates the substances, is based on the
different speeds with which each one is dragged. Because water is not a solvent
for the ink, it does not separate the pigments as alcohol does.
WATER CHROMATOGRAPHY

16.  Materials:
4 gummy bears
4 glasses
Water with salt
Water with baking
Vinegar
Lemon juice
 Process
 Result:
1 bear: Absorbs the water and increases its size, 2 bear: Floats in the water, 3 bear: the acids of
vinegar corrode the bear, 4 bear: the lemon acids corrode the bear and cause it to decompose
MUTATING BEARS

17.  Materials:
Water
Coin
 Process
 Explanation:
The surface of the water behaves like a waterproof "fabric" that contains the
liquid inside, preventing it from spilling. This "tissue" has a certain resistance
(surface tension) ..
SURFACE WATER TENSION

18.  Materials:
Nail
Water
Container
 Process
 Explanation:
 It is a rust-reduction reaction in which the water and the nail come into contact
and react with each other exchanging particles (oxygen gains electrons and
iron loses them.)
EXPERIMENT OF OXIDATION

19.  Materials:
Candle
Plate
Water
glass
 Process
 Explanation:
The glass covers the candle, the hot CO2 accumulates in the upper part, the oxygen moves
downwards and the flame dims because the oxygen should be surrounding the flame. There
is a gradual cooling of the gases inside the vessel. The pressure in the interior drops,
becoming less than the pressure from the outside. The water begins to slowly enter the
glass
EXPERIMENT WITH A CANDLE

20.  Materials:
Glasses
Kitchen paper
Colorant
Water
 Process
 Explanation:
The colored water rises through the paper and falls into the empty glass thanks
to capillarity. Capillarity is a physical property of water, thanks to which it can
advance through a tiny channel, which in our case are the holes in the kitchen
paper (the cellulose air spaces).
EXPERIMENT OF WATER CAPILARITY

21.  Materials:
Glasses
Chalks
Water
Vinegar
 Process
 Explanation:
Chalk formed by calcium carbonate (CaCO3), will act as a base.
Water pH neutral. Calcium carbonate does not react with water. A reaction
occurs in the vinegar vessel and calcium acetate is formed (Ca (CH3COO) 2)
EXPERIMENT WITH A CHALK

22.  In each team, the roles are distributed among the members as new tasks
are emerging.
Cooperative Learning

23.  Photography and video
 Blog
 Youtube
 Twitter, Instagram
 Mobile apps
What technology do we use?

24.  We use photography and video to document our inquiry.
Photography and video

25. Blog

26. Youtube

27. Twitter, Instagram

28. Mobile apps

29. You are here!

30. STE(A)M

31. Science

32. Technology

33. Engineering

34. Arts

35. Mathematics

36. experimentosme1
LET‘S KEEP IN CONTACT
experimentosmemp
experimentosmemp

37. Connections

38. Thank you very much for your attention