Science Problem-solving – How can we separate the different parts that make up a soil?
If you go out of the house today for your daily form of exercise or from searching in your garden, find small samples of different soils you find. You could collect these in sandwich bags.
Back at home, put about 5cm of each soil sample in separate jars or containers. Fill each jar until it is ¾ full with water, place the lid on the jar and shake vigorously.
What happens to the different fragments of rock and soil? Which ones settle to the bottom quicker? Which ones remain in suspension for a longer amount of time? What layers are formed from the soil and rock?
Draw how you separated the contents of soil. Once you’ve drawn your results for each jar, label the different parts. Write a short conclusion of what you have found out.