Discovering the parts of a plant and their functions
How do plants actually eat? Maybe a simple question, but worth a discovery!
A multi-grade team from 4 to 15 years, became masters in identifying and explaining plant structure function and life processes.
The youngest from Kindergarten analyzed a common plant, identifying the roots, stems, leaves, and flowers, and learned about the function of each.Lower Primary team pairs using key vocabulary and identifying samples in a garden, explained how plant’s structure and functions affects its survival. They can explain the right terminology like chlorophyll, carbon dioxide, oxygen and sugar as easily as they can identify and describe colors and the letters of the alphabet. The ‘junior seniors’ team tackled the reproductive processes in typical flowering plants, the processes, comparing and contrasting different ways plants are pollinated and explained the process of photosynthesis.Kindergarten: Anna Eresong-Doosogla, Maame Efua Aba Sam. Lower Primary: Persis Doosogla, Kukua Aba Sam and Wendy. Kukua Etornam and Esi Peters. JHS: Ernestina Plange, Vidal Quartey and Kelsey Odoi
What is the effect of oxygen on fire?
To satisfy their curiosity about chemistry, this group played with fire!
This team applied their knowledge of the need of oxygen for burning to a practical situation depicting candles burning in open and closed jars.
All the needed was a candle, two jars and matches. After lighting the candles, they put one into an open and one into a closed jar. What will happen? Our scienists saw in their experiment that the candle in the closed jar extinguished – due to lack of oxygen!Ernestina Adzimi, Jemima Teye and Benjamin Bamfo
How to make an electromagnet
Did you know that there are magnets strong enough to pick up an entire car?
Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers and hard disks. But how does an electro magnet actually work?
Our two young scientists knew already, that electric current flowing through a wire creates a magnetic field around it. Winding the wire into a coil with many turns lying side by side will result in a stronger magnetic field. All they needed was a nail, 2 m isolated bell wire and a small battery. Now they wound the wire around the nail, connected its ends to the battery and ready! They had a little electromagnet, too small to lift an entire car but strong enough to pick up little metal pieces. Thus they also discovered that some coins are magnetic and others are not. So not all metals are magnetic! Do you know which ones are magnetic?Promise and Hananeel Ashaley
How does electricity travel our homes?
What actually is happening when a light bulb is switched off? Answer: The flow of electrons stops. This group constructed a simple electric circuit to explain how brighter or dimmer light depends on the amount of power generated as well as the amount used at a given time.
Their materials were enough to light only a bulb for a long time or a few more bulbs but for a very short time so they strolled over to Ghana’s largest source of electricity, the hydro electric power generation station on the Volta lake, literally a stone throw from our venue, since we were at Akosombo! Perhaps that morning they heard and saw far more than they were keen on knowing or can even understand, but they certainly can explain to those who wonder why lights have started going on and off in Ghana. Too many bulbs switch on for the power available at a given time, or the power available is not enough for every switch to be on at the same time. Isn’t that a lesson everyone should learn?Larbi and Kweku Dade
How to make electricity
Can I make electricity from a lemon, a potato, a coin & salt water ?
Did you know that a lemon or potato ca be used to make a ssmall battery? Plugging two different metal pins (e.g. copper and zinc) into a lemon will result in an electric current between them! Just connect to the cables of an old ear-phone and hear it yourself!
The “power team” used simple things to build their “galvanic cells”. They discovered how electric energy could be released during a chemical reaction and measured the resulting electric current with a multi-meter.Jason Adei, Maame Ama Bainson, Ayeley Ashong, Sandra K. Arthur, Regina Osae
Filtration, crystallisation and evaporation
The “cocktail-team” experimented with various mixtures and dicovered how to separate iron fillings, sugar, sand, salt and chaff.
They identified which component is suitable for separation by magnetism, floating or sinking, filtering, evaporation and winnowing.Sylvia Emefa Seamegbe, Emmanuel Blay, Samuel Baku, Richard Mantey, Natasha Tetteh, Edem Bekor