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This article will show you how to measure a daphnia's heartbeat. This a simple process and is easily done by most. WARNING: This experiment uses a Bunsen Burner
What will I need?[]
- A Gauze
- A Tripod
- A Heatproof Mat
- A Large and Small Beaker
- A Funnel and Filter Paper
- Rock Salt
- An Evaporating Dish
- A Pestle and Mortar
Method[]
- Using a pestle and mortar, crush the rock salt up until it is in a gritty .
- Then pour it into the funnel with the filter paper in which is sitting in your large beaker. Only put in small amounts at a time.
- Get your Bunsen burner ready by putting a heatproof mat under it, a tripod over it and a gauze over the tripod. Then put your evaporating dish onto the gauze
- Once your water has all drained (Or just the amount you want) put it into your evaporating dish.
- Turn your Bunsen Burner onto a roaring flame (Blue) and stand back away from the spitting of the hot water
- Depending on the amount of water it should take 5 - 10 minutes to fully evaporate and leave just the salt. After it has done that turn the Bunsen off and leave it to cool down.
- Now you can scrape the salt from the evaporating dish and clean up.