3RD GRADE NATURAL SCIENCES: SCIENTIFIC METHOD WITH GUMMY BEARS

Para poner en práctica el método científico vamos a realizar un experimento en clase usando ositos de goma. Para ello vamos a seguir el siguiente esquema,...a ver que resultados obtenemos,...

SCIENTIFIC METHOD WITH GUMMY BEARS

MATERIALS:

• Gummy bears
• Scale to weight
• ruler
• Water
• Salt
• Sugar
• Vinegar
• 4 little glasses

STEPS OF THE SCIENTIFIC METHOD

1- MAKE AN OBSERVATION

Observe the colour, the smell and the consistency of the bears

Do all of the have the same consistency?

Do all of them have the same colour ?

What is their smell?

We are going to measure them:long/ wide/ high

• _________ bear: _______  mm
• _________ bear: _______  mm
• _________ bear: ________ mm
• _________ bear: ________ mm

2- ASK A QUESTION

What will happen if we put them in water, water with sugar ,  water with salt and water with vinegar for some hours?

3.- MAKE A HYPOTHESIS

I think…

The bear in water:  

will change its colour…. YES/ NO

will change its consistency… YES/NO

will change its smell… YES/NO

will it become bigger…. YES/NO

will it become smaller… YES/NO

will it become wider… YES/NO

will it become narrower… YES/NO

The bear in water with salt:  

will change colour…. YES/ NO

will change its consistency… YES/NO

will change its smell… YES/NO

will it become bigger…. YES/NO

will it become smaller… YES/NO

will it become wider… YES/NO

will it become narrower… YES/NO

The bear in water with sugar:  

will change colour…. YES/ NO

will change its consistency… YES/NO

will change its smell… YES/NO

will it become bigger…. YES/NO

will it become smaller… YES/NO

will it become wider… YES/NO

will it become narrower… YES/NO

The bear in water with vinegar:

will change colour…. YES/ NO

will change its consistency… YES/NO

will change its smell… YES/NO

will it become bigger…. YES/NO

will it become smaller… YES/NO

will it become wider… YES/NO

will it become narrower… YES/NO

4.- ANALYZE THE RESULTS.

The bear in water:  

has changed colour…. YES/ NO

has changed its consistency…YES/NO

has changed its smell… YES/NO

has become bigger…. YES/NO

has become smaller… YES/NO

has become wider… YES/NO

has become narrower… YES/NO

The bear in water with salt:  

has changed colour…. YES/ NO

has changed its consistency YES/NO

has changed its smell… YES/NO

has become bigger…. YES/NO

has become smaller… YES/NO

has become wider… YES/NO

has become narrower… YES/NO

The bear in water with sugar:  

has changed colour…. YES/ NO

has changed its consistency…YES/NO

has changed its smell… YES/NO

has become bigger…. YES/NO

has become smaller… YES/NO

has become wider… YES/NO

has become narrower… YES/NO

The bear in water with vinegar:  

has changed colour…. YES/ NO

has changed its consistency… YES/NO

has changed its smell… YES/NO

has become bigger…. YES/NO

has become smaller… YES/NO

has become wider… YES/NO

has become narrower… YES/NO

has increased its weight...YES/NO

has decreased its weight… YES/NO

 5.- DRAW A CONCLUSION.

Which of your hypothesis were correct?