The basalt which makes up the Giant’s causeway is an igneous rock. Sedimentary rocks are formed by small rock pieces which are transported by rivers and laid down in layers. Chalk is a ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The third graders in Adrianna Nelson’s third grade class recently learned about sedimentary rocks and explored a hands-on ...

CONNOR: Good thinking! I read a bit about limestone on the bus journey. Limestone is a sedimentary rock created by layers of skeletons and shells of sea creatures found in ancient, warm ...