Plants first made their way onto land at least 470 million years ago but for their first 80 million years, leaves as we know them today didn’t exist. What held them back?

People have been getting tattoos for thousands of years, but we've never quite been sure why the ink sticks around under our skin. A group of researchers now think they might have the answer. Plus, scientists are on the road to making...

We don't need a time machine to learn from the past (but let us know if you find one)! Air bubbles trapped in ice for millennia and ancient pollen grains can tell us a lot about climate shifts hundreds of thousands of years ago!

Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well.

Join the Amoeba Sisters in their updated plant structure and adaptations video as they discuss the terms vascular vs nonvascular and how they relate to plants before exploring some general categories of plants (bryophytes, seedless...

Paul Andersen shows you how to find stomata in a dicot and monocot leaf using finger nail polish and transparent tape. A microscope is required to actually see the stomata.

Paul Andersen starts by defining transpiration as evaporation off of a leaf. He then describes how a potometer can be used to measure the rate of transpiration in different environments.

Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can...

Plants, unlike most living things, produce their own food through a process called photosynthesis. Photosynthesis means 'making using light'. Plants use the energy from the sunlight to make food. The food matter comes from carbon dioxide...

Researchers estimate ancient temperatures using data from climate proxy records, i.e., indirect methods to measure temperature through natural archives, such as coral skeletons, tree rings, glacial ice cores, and so on. For example, the...

Why are leaves commonly flat, spongy and strikingly green? Discover the different parts of a leaf and their function. Biology - Plants - Learning Points. A leaf is made of many layers sandwiched between tough outer layers. Gases enter...

Journey into the chloroplast, where photosynthesis takes place, to learn how plants convert sunlight into usable chemical energy - one of the most vital processes on Earth. Biology - Plants - Learning Points. Leaves are small...

We place two privet hedge shoots under different conditions to see how the amount of water they draw up will change. They are both placed in measuring cylinders with the same amount of water and a layer of oil is added to the top to...

The loss of water vapour from plants to the atmosphere. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...

Learn all about the parts of a plant.
<

br/>

Life processes - Green plants - Pa
r

ts of a plant />

Learning Points
Leaves use water, carbon dioxide and su
n

light to carry out...

Are flowers male or female? The answer is, they're both!
<

br/>

Life processes - Green plants - Reproduction in fl
o

wering plants />

Learning Points
All flowers have both m
a

le and female...

In this video we cover how plants are organised, and then take a closer look at the leaf. We consider the different parts of a leaf and how it is adapted for its functions.



We re-uploaded this video as the original had some...

With various environments better understood, it's now time to look at specific types of organisms. Let's start with plants, also known as flora. We learned about these in the botany series, but now let's contextualize some of that...

Plants possess a wide variety of structures that enable them to accomplish amazing things. This engaging series of videos investigates structures common to most plants and describes how these features enable them to survive. Familiar,...

CAM Plant Metabolism Temporal Separation

As the global population continues to increase, scientists and farmers are concerned about the impacts that climate change could have on the world's crops. To better understand the process of photosynthesis and how plants use water and...

How do plants use water to live and grow? How does water help the human body? What food contains the highest amount of water? Properties Of Water, Part 3

This video explains what transpiration is, how it can be estimated through experiments measuring the uptake of water by plants or the mass of water lost by the plants, and how changes in environmental conditions such as temperature,...

Students will learn why photosynthesis is so important to us. The different plant structures and compounds involved in photosynthesis and transpiration are highlighted. Beyond photosynthesis, plant responses to certain stimuli and...