As part of Science Studies, Year 7 students study a range of different subjects that explore the building blocks of our universe!

Unlock the Secrets of the

Universe With Science!

"Science studies lead to a wide range of career areas, including medicine, zoology, engineering, astronomy, psychiatry, and many more - the sky's the limit!"

Mr. Paul McGlynn

Domain Leader

This foundational year allows students to develop their lab safety and scientific skills, conduct experiments into mixtures and separation, study the power of forces, and dive into the world of scientific classification with an excursion to the Melbourne Zoo! Once they've qualified for their Bunsen Burner license, students have the opportunity to participate in hands-on experiments in our classroom laboratories, including growing crystals, practicing chromatography techniques, dissecting fish (don't worry, it's not as gross as it sounds), and even launching rockets on the College oval! In later Year levels, students are able to expand their skills into specialised areas of broader study, with Subjects including Physics, Chemistry, Biology, Psychology, Astronomy, and Forensic Science!

Science Studies

Home Science: Eggshell Crystal Geodes!

This fun experiment can be done using items found in your fridge and pantry! Make sure you ask Mum or Dad for help first!

Crack the eggs as close to the narrow end as possible. (This preserves more egg to use as a container for the solution.)

Use an egg carton lined with waxed paper or mini-muffin tins to hold the eggs upright.

Use a saucepan to heat the water to boiling.

Clean the eggshells using hot water. The hot water cooks the lining and allows you to pull the egg membrane using your fingers. Make sure to remove all the egg membrane or your eggshell will grow mold and your crystals will turn black!

Pour half a cup to a cup of water into your heatproof container. If you poured half a cup of water into the container, add about a ¼ cup of solid to the water. (1:2 ratio solid to liquid.) Stir it until it dissolves. When the initial amount of solid is dissolved, continue adding small amounts of the solid until the water is super-saturated (i.e. when the water has absorbed all it is able to absorb and any solid you add will not dissolve.)

Add food colouring.
 

Carefully pour your solution into the eggshell, filling it as full as possible without over-flowing it or causing it to tip.

Find a safe place to put your shells while they dry. Crystals will form inside the eggshells as the water evaporates.

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  • Clean eggshells.

  • Water.

  • A variety of soluble solids (table or rock salt, sugar, baking soda, Epsom salts, cream of tartar.

  • Small heat-proof containers (i.e. coffee cups).

  • Spoons.

  • Food colouring.

  • Egg cartons and wax paper or mini-muffin tins.

You Will Need:

How It Works!

Dissolving the crystals in hot water creates a “super-saturated solution", which means there's no space between molecules in the solution. As the solution cools, the water loses its energy and the

crystals are forced to become a solid again. Since this happens slowly along with the evaporation, the crystals have time to grow

larger than they originally were. Natural geodes in rock are formed in the same way!

*Experiment provided by www.sciencebob.com

For more great home Science experiments, click here -->

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Wheelers Hill Secondary College