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    Home » Science Experiments for Kids » Earthquake Science Experiments and Investigations

    Earthquake Science Experiments and Investigations

    February 16, 2020 By Emma Vanstone Leave a Comment

    We’ve got some easy ( and tasty ) earthquake experiments to share today! Did you know the Earth is made up of large pieces of rock called tectonic plates? Where two tectonic plates meet is called a fault. If two plates rub together at a fault waves of energy ( seismic waves ) come to the surface of the Earth which are felt as an Earthquake.

    Earthquakes can be different magnitudes, sometimes they are just a small tremor and other times cause huge amounts of damage to the land above. An earthquake of magnitude 3 would be very small, 6 would cause substantial damage and 9 would have catastrophic effects.

    Earthquake Image - cracked road after an Earthquake

    The amount of damage an earthquake causes is measured by the Mercalli Scale, which is a measure of intensity.  This changes depending on the part of the Earthquake being measured. For example damage at the epicentre of an Earthquake would be more than further away from the epicentre.

    If an Earthquake happens at the bottom of the sea it can push water upwards creating huge waves called tsunamis.

    Earth like a Peach

    Imagine the Earth as being like a peach made up of layers. The stone in the middle is the core, while the fleshy part is like the Earth’s mantle which contains magma and the skin is like the crust.

    Another way to picture this is to make a model of the Earth like this one we made with playdough.

    Model of the earth using a marble and playdough to illustrate the different layers.

    Good Foundations – Earthquake Experiment

    You’ll need:

    Jelly

    Chocolate brownie or other foundation

    Gummy sweets

    Cocktail sticks

    earthquake science experiment using candy towers in different edible foundations.

    Earthquake Experiment Instructions

    Make jelly and a brownie or other foundation layer to test in a tray or on a plate. If you don’t want to use food items, play dough, clay etc would all work well too.

    Build a tower using the cocktail sticks and jelly sweets. Ours looked like this.

    We tested our tower on it’s own and then in jelly, flapjack and brownie by counting the number of shakes needed to make it fall over and recorded our observations.

    Tower made from gummy sweets and toothpicks in a flapjack foundation ready for an earthquake investigation
    tower made from toothpciks and candy
    Flapjack with a tower made from toothpicks and sweets for an earthquake investigation.

    Images taken from Snackable Science

    Earthquake Experiment – Make it fair

    The same person shook all our towers, so we could try to make sure the same force was used each time.

    We used a tower of the same height and using the same number of sweets/toothpicks each time.

    Keep the depth of the foundations the same.

    Extension ideas

    What happens if you build a taller tower?

    What other foundations could you use?

    Can you think of a way to strengthen your tower?

    Snackable Science

    This activity can also be found in my latest book, Snackable Science

    Snackable Science - science book full of exciting edible experiments for kids.

    Earthquake Facts for Kids

    A seismometer is used to measure the magnitude of an earthquake. Earthquakes are measured on the Richter Scale.

    Movement of a tectonic plate of just 20cm is enough to set off an earthquake!

    Small earthquakes can be felt as a slight tremor, but larger earthquakes can cause severe damage, making buildings collapse, causing landslides, flooding and explosions. 

    More Earthquake Science for Kids

    Make your own Seismometer – this is super easy and great fun to engineer.

    Find out about plate tectonics with an orange!

    Homemade seismometer using a cardboard box, cup, pencil, string and paper. #earthquakescienceforkids #earthquakescience

    Scientific American have a brilliant LEGO based earthquake activity too!

    Suitable for  – Key Stage 2 – Human and physical geography.

    Key Stage 2 – Science

    Post contains affiliate links

    Last Updated on August 26, 2022 by Emma Vanstone

    « Easy STEM Challenges for Kids
    What is a Moonquake? »

    Safety Notice

    Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

    These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

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