Interactive logic gates
You can also click/tap a symbol to copy it and then click/tap to paste it into the box.
Two-Way Light Switch
In your house you probabably have a light with more than one switch - e.g. landing lights often have switches upstairs and downstairs. Add the correct logic gate to the circuit and see if you can get this light work to work in the same way. You can click on Upstairs and Downstairs switches to change them.
You can buy security lights that come on only when it's dark and they sense some movement. Add the correct logic gate to the circuit and see if you can get it to work (you can click on Darkness and Movement to change them).