<1 Week

It is important that the membranes around living cells are 'semi-permeable' to allow it to absorb nutrients and dispose of waste products. In this science experiment we will study the inward and outward flow of materials through the 'semi-permeable'...

Acid rain can damage many different forms of life. Acid rain turns the pH-level of the oceans more acidic and this dissolves or weakens the shells of living sea creatures. Other animals higher up in the food chain that...

The 'microbes' inside the milk need oxygen to survive and they use up the oxygen over a period of time. In this science experiment we will use a 'Methylene blue' solution to test how much oxygen exist in various...

When we think about ants, we usually think about how troublesome they are. Ants are actually very interesting and they have a highly organized social structure and way of life. Ants are very social insects. They live in colonies...

'Transpiration' is a process by which plants take back water to the atmosphere. After absorbing and retaining water from the ground through their roots, plants then release water through structures in their leaves, called 'stomata' to the atmosphere.

Pollution from various chemical sources such as laundry and other detergents, is released into the soil of the earth on a daily basis. Many of these detergents are phosphate-based and can be very damaging to freshwater, plant and animal...

Many plants can be grown into maturity without any soil at all. Growing plants in water instead of soil is called hydroponics, and it's a fascinating type of horticulture. The technique of 'hydroponics' were developed by Russian scientists in...

Water in narrow tubes tends to be pulled upward by means of a process called 'capillary action'. Flowers also make use of capillary action to draw water from the ground and pull it upwards through the stem to the...

'Vitamin E' is a popular ingredient in anti-aging creams, because it slows down the chemical process called 'oxidation reduction reactions' in the cell membranes of human skin or other organic matter. We can test this with rose petals in...

Mummies have been found all over the world including the Aztecs in Peru in South America and as far east as China. 'Natron' is a natural salt that was used in the mummification process to dry out the bodies'...