This term the science focus is on Biological Science and Life systems. Students will be investigating the needs of living things, how they grow and change, and explore how our senses are used to make decisions about situations they may encounter.
ICAS Science Assessment – Tuesday, 29 May 2018
Well done to those students who have enrolled to challenge themselves with ICAS Science Assessment . Please follow the link below for online practice questions and to view the format of the papers. https://www.eaa.unsw.edu.au/icas/download-practice-questions

Quiz questions
1. Which present day man-eating creature are near relatives of the dinosaurs
2. When did the Dinosaurs become extinct: 35, 65 or 95 million years ago?
3. Are reptiles warm-blooded?
4. Do frogs lay their eggs in water or on land?
5.What is a shark’s skeleton made of?
6. How many eyes does an Octopus have ?
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Try this – Sticky socks

You will need
• The smallest pair of shoes you have
• A very big pair of socks (white is best)
• Tweezers
• Magnifying glass or microscope (optional)
• Some bushland to go for a walk in

What to do
1. Put on your shoes.
2. Put the socks on over the top of your shoes.
3. Go for a short walk through the bush.
4. Take off your socks and carefully turn them inside out so nothing falls off them.
5. Go back to a desk or table to see what you’ve collected.
6. Turn the socks the right way out and look at what is stuck to your socks.
7. Use tweezers to pull interesting bits out of your socks so you can look at them more closely.

What’s happening?

Plants make seeds, and seeds make more plants. But plants don’t want all their ‘babies’ to stay close to home. They want to spread seeds far and wide! This tends to help young plants survive better.

You may have found some seeds on your socks. Take a closer look. What features do these seeds have? Perhaps the seeds have spikes or hooks that helped them grip to your socks.

Spikes or hooks on seeds stick to passing animals. The seeds attach for a while and then fall off, or are picked out when the animals stop to groom.

There are many different ways that plants spread their seeds. Some trees put their seeds in tasty fruits, so they get eaten and pooped out somewhere else. Dandelion seeds are light and float in the wind. Coconuts float on the ocean and wash up on far away beaches, where they can grow into trees. Some plants have more active methods of spreading seeds – the sandbox tree has explosive seed pods that can throw seeds 45 metres away!

Quiz answers
1. Crocodile and Alligators.
2. 65 million years ago and the reason is still unsure.
3. No, they are cold blooded (they use the sun and movement to warm).
4. Frogs lay their eggs in water (each egg is surrounded in jelly).
5. A shark’s skeleton is made of cartilage.
6. An Octopus has two eyes.