Source: Create a DNA Fingerprint
Found this really easy to use DNA fingerprinting “game” I guess you could call it. It directs you through each step to perform the DNA fingerprinting and then you do the matching up at the end to find out the culprit. Each step also tells you the science behind the step and it won’t let you do it wrong! It also doesn’t tell you when you’re wrong though!
This would be good fun as part of revision or during a lesson with a different pupil trying each step, discussing them and then seeing who guesses right with the culprit. Very easy for most levels to understand.
This is how you can make some awesome marbleized looking Easter Eggs quickly and easily, without a lot of mess and spending a lot of money. Here’s what
Source: How to Make Shaving Cream Easter Egg Dye
I found a link on pinterest the other day that I just thought “Ooh, eggs and shaving foam”, pinning it for another day. Then I thought, let’s actually look at the method! It looks so, so simple. We’ve been planning on trying to make natural dyes (raspberries, coffee, etc) to paint some eggs here in school, but this method is much simpler and easier to put together.
In fact, I’ve put the ingredients on my shopping list to try at home!
Corrosion Demos This page has an amazing demonstration for corrosion, incredibly visual and fast to show in a classroom setting. This is a very good way to show corrosion actively happening rather than the usual nails in large conical flasks (which does look impressive over time, but not on the short term). Showing corrosion with nails in a flask also tends to ruin some of the glassware so can be pretty wasteful, petri dishes are supposed to be disposable! The link also includes the student sheet and slides for teaching with.
I can’t wait to try this one!