The sparkling glove

Type of resource: youtube

Web address https://www.youtube.com/watch?v=nanpAwy1NOk

Language: english, italian

Description

Set up a chemical reaction, learning what a reactant is. Understand that not all substances, when mixed together, give a reaction

Scientific concept introduced

Reaction, reagent, carbon dioxide, mixture, hypothesis

Creative and critical thinking

Critical thinking
– Observation
– Formulation of hypotheses
– Discussion

Creative thinking

– Flexibility of thinking
– Elaboration

Mathematical reasoning

Comparison of quantities

Scientific thinking

– Formulating hypotheses while watching the experiment
– Reproducing the experiment
– Evaluating the results
– Applying the results of the experiment to everyday life

Learning how to learn

Being able to list the equipment needed to reproduce the experiment illustrated by the teacher
Accepting the suggestions and doubts of their classmates
Wondering whether the same reaction could also occur with other ingredients and creating various combinations, explaining why this is not the case
Identifying the value of this experiment in everyday life

Additional

Actively participate in the teacher’s execution of the experiment
Listen to the suggestions of others
Anticipate the possible results
Imagine in which moments of daily life something similar to what was seen in the experiment occurs
Maintain attention in the execution
Become familiar with the ingredients
Choose the most suitable tools
Conclude the activity with tidying up

The sparkling glove

Overall aims

maintain sustained attention during the execution of the experiment
list the materials needed to reproduce the experiment
choosing the best tools appropriately
compare quantities of ingredients
hypothesise the results
listening to the hypotheses of fellow students
formulating possible combinations of ingredients to see if they give rise to reactions
carry out the chemical reaction between vinegar and bicarbonate
remember the ingredients that gave rise to the reaction
narrate the experiment verbally and by means of a graphic representation divided into three phases

Vocabulary – keywords should be understood

reaction, reagent, carbon dioxide, vinegar, bicarbonate, gas, mixture.

Expected learning outcomes (operational aims)

the child/student will be able to:
– Reproducing the experiment carried out by the teacher
– Tell what happens during the chemical reaction between vinegar and bicarbonate.
– Explain why the glove swells
– Explain why the glove does not swell if other ingredients are mixed together (e.g. water and bicarbonate of soda).
– Draw the procedure of the experiment in three steps

the child/student will have exercised:
– Sustained attention
– Executive attention
– Active listening
– Collaborative learning
– Metacognitive thinking

STEM skills – to which the learning unit is related to

CORE STEM SKILLS

Asking questions
Analysis and problem solving
Drawing evidence-based conclusions
Reproducing the experiment
Evaluating the results of the experiment

ADDITIONAL SKILLS

Joint decisions
Group work
Listening
Understanding
Drawing and representation

Teaching methodologies/activity outline

– Circle time
– Brain storming
– Experiential methodology
– Stimulation of high thinking
– Debriefing

Introduction:
The teacher will reproduce the sparkling glove experiment in front of the children. During the performance, she will pause to allow the children to memorise the necessary tools and ingredients, to let them imagine the outcome of the experiment, and above all to reflect together on a metacognitive level. Afterwards, the children will reproduce the experiment in small groups, in order to directly experience what is happening. Finally, they will represent the experience on their own paper in stages, so as to assimilate what has been experienced.

Activities:
First part
Teacher:
shows the glass and the glove and asks the children if they know them and their use, etc.
shows the bicarbonate and vinegar and asks the children to guess what they are, giving them the opportunity to touch, taste, smell.
prepare the equipment in front of the children: two glasses with a small hole in the bottom covered with a piece of blotting paper containing bicarbonate, one of which has the glove attached to it, two glasses containing vinegar
asks the children what they think is going to happen.
pour vinegar and bicarbonate of soda into the glass, then ask each child to observe and tell what happens to the mixture. When all the children have seen that bubbles are being produced in the mixture, the teacher proposes repeating the experiment in another glass to which she will attach a glove with a funny face drawn on it using a rubber band.
asks the children again what they think is going to happen. When all have answered, the execution will proceed.
explains to the children that what they have just observed is a Chemical Reaction: vinegar and bicarbonate are special friends (reagents) that when they meet they make a party (reaction) with bubbles (carbon dioxide) that inflate the glove.
explains that the bubbles are carbon dioxide, which is a gas, and that’s why the glove inflates, like when we blow into a balloon.

Part two
the teacher sets up the working environment for the experience to be repeated in small groups.
with the guidance of the teacher, repeat the experiment in groups.
Inspired by the children’s curiosity and questions, try mixing other substances as well.

Part three
everyone draws the sparkling glove experiment, dividing it into three phases (presentation of materials, mixture, inflated glove).
we return to the circle for a moment of discussion and reflection.

Materials:
A glove
A felt-tip pen
Two glasses: one pierced and one unpierced
A pair of scissors
Elastic
Blotting paper
Vinegar
Bicarbonate
Salt, water, oil,…other substances that may be available at school according to the children’s curiosity.
Sheets and coloured pencils

Instructions:
It is important that each member of the group has a precise and decisive task for the conduct of the experiment. For example:
One member of the group can prepare the glove by drawing the face
One member of the group puts the piece of paper in the perforated glass.
One member of the group can fill the two glasses with vinegar and bicarbonate of soda respectively.
One member of the group closes the bicarbonate glass with the glove and places it in the vinegar glass.

Conclusions:
At the end of the activity the children will have directly experienced that only the meeting of certain ingredients (reagents) gives rise to a reaction.

Assessment of learning

Observation by the teacher of the active participation of each child, and of the children’s answers to the stimulus questions.
The teacher will assess whether each child is able to reproduce the experiment in graphic form at the end of the activity.

Equipment and materials to be used in learning unit (tools, ingredients etc)

A glove
A felt-tip pen
Two glasses
A pair of scissors
Elastic
Blotting paper
Vinegar
Bicarbonate
Salt, water, oil,…other substances that may be available at school according to the children’s curiosity.
Sheets and coloured pencils