The material in this slide show is provided free for educational use only. All other forms of storage or reproduction are subject to copyright - please contact the National Marine Aquarium The slide show was designed and produced for the NMA by STEP, the Science Training & Education Partnership T raining & S cience E ducation P artnership

How plants grow

There are many different types of plant

Tree Fern Moss … and in the ocean Seaweed Microscopic alga Kelp On land...

Although they look very different, all of these plants live and grow in the same way

Growing means getting bigger You need food to be able to grow

All animals eat food to grow

The lion eats meat The wildebeest eats grass

But how does the grass grow?

All plants can make their own food They use sunlight to build their food from simpler materials

Water and Carbon dioxide gas Add Sunlight Sugar and Oxygen gas ++

Plants can only grow where there is enough light

In the ocean, they can only grow on the bottom in shallow water

In the ocean, most light disappears in the top 100 metres Plants cannot grow deeper than this

Where the ocean is deep, plants have to float close to the surface to get enough light

This single-celled alga is about one- fiftieth of a millimetre across There may be one million of these tiny cells in each litre of surface seawater

You have seen that - Plants can make their own food Plants use sunlight to make sugar

You have seen that - Plants produce oxygen In the ocean, plants can only grow in shallow water

NOTES for USERS The material in this slide show is designed to support the teaching of science at Key Stage 1 A full description of the slide show, and linked activities for students, can be found on the National Marine Aquarium (NMA) web-site: Teachers are free to amend the slide show in whatever way they feel fit, or to use slides in other contexts. However, please note that neither the NMA nor the designers will accept responsibility for modifications, and original material remains copyright of the NMA Individual images used in the slides are copyright of NMA or STEP, except where acknowledged separately The slides have been set up to display as A4 landscape format. If they are incorporated into other slide sequences with different display settings, change in aspect ratio and text location will occur The slide sequence contains the minimum of effects and transitions. However, there are some automated animations, and teachers will wish to make sure that they are familiar with the sequence before use in class Use the PowerPoint notes viewer to obtain additional information for some slides T raining & S cience E ducation P artnership