Do you know why foods turns bad? Why do we become sick? They are tiny living things that we are unable to see with our naked eyes. They can be found all over the place. They are around you, on your body and even inside you. Can you name some of them? Are they useful or harmful?

Mammoths and dinosaurs are examples of animals that not longer exist. Is it because of their gigantic size? Elephants look similar to mammoths. Why are they still surviving? Rafflesia is an example of a plant species found in Malaysia that is facing extinction. Why? How do animals and plants ensure the survival of their species?

They are frogs, butterflies, snakes, caterpillars and birds living in this habitat. There are various types of plants too. Some animals eat plants or other animals for food. What about plants?