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This lesson inspires you to discuss facts and misconceptions about substance abuse.
The appearance of snowdrops signals the arrival of spring. It is a protected species in many countries.
This video is about the structure and uses of reeds and their effect on the environment.
This is a video presenting the characteristics of natural and artificial ecosystems.
How do attendants prompt seal pups to do what they are asked to? They are even willing to come to the shore for us! How can we teach them to do that?
Is the resolution of our eye comparable to that of today’s top quality films? What is the actual resolution of the human eye?
There are some species in the animal kingdom that do just fine with a single meal a month or even with a few months’ fast. An example of such species is the Indian python.
Donating blood can save lives, since patients often need various blood products for their recovery.
We can find direct proof of Darwinian evolution in our environment or even on our own body.
The apple is the best-known fruit and indeed one of the most popular fruits in the world.
Honey is a type of food produced by bees that people have been consuming for thousands of years.
If we pay close attention as we walk through the forests and across the meadows, we can see miracles. Let’s learn more about the rose chafer.
Penguins do not only live in regions with freezing temperatures. They can also be found in the warmer temperate zone.
Members of pine family compromise 30% of the world's forests. Although globally widespread, they prefer regions with cool and rainy climates.
This film presents the result of human interference and tampering with nature.
Trees and bushes in the forest can produce various tasty fruits. One of the most popular fruits to grow in the wild is the blackberry.
Horse chestnut trees in parks and on playgrounds are a sight to behold. They are native to southeastern Europe and Southwest Asia.
Living organisms are classified into various trophic levels based on the role they play in the food chain. This video presents these trophic levels.
Thanks to advances in medicine and our constantly deepening knowledge of biology, we are living longer and longer. But how long can we live?
The California kingsnake is one of the most popular species of pet reptiles. It was named after its habit to consume other snakes every now and then.
The easiest way to adulterate honey is to feed bees sugar syrup. Bees can also break down this type of sugar.
