Rocks and minerals: igneous rocks

We've been using a long-ago downloaded resource from Currlick to study rocks with dd (The title is Intellego Unit Study Soils, Rocks, Minerals and Fossils - I'm not sure that it's still available to purchase) . Many of the links are out-of-date, but it's been a useful prompt to watch videos and do a few experiments.

Here we are, using wax crayon shavings to replicate some of the processes involved in the rock cycle.

Erosion:

 Sedimentation (sedimentary rocks)

Pressure (stamped on the folded foil)

Heat:

Some of the intro videos we watched:

Intro to different types of rocks/rock cycle

http://www.neok12.com/video/Types-of-Rocks/zX616a577c597f7c784c720a.htm

http://www.neok12.com/video/Types-of-Rocks/zX750f7762705a694f5b636b.htm

http://www.neok12.com/video/Types-of-Rocks/zX466963500e710c067b7277.htm

Igneous rocks:

Video on identifying igneous rocks:
http://www.neok12.com/video/Types-of-Rocks/zX63086e417b587d05465e77.htm


This week we looked at pumice rock as an example of an extrusive igneous rock:

Pumice:
https://www.mineralseducationcoalition.org/minerals/pumice
(you can get pumice at most chemist shops in the toiletries/bathtime section. We bought ours for around £1 at Wilkinsons.

Experiment with floating rocks:
http://www.education.com/science-fair/article/floating-rocks/