Overview: Water-rich planetary building blocks

Overview
of "Tales of … Water-rich planetary building blocks found around white dwarf"
Description:
Tales of … Water-rich planetary building blocks found around white dwarf explains how astronomers used multiple observatories, both space- and ground-based, to find evidence that terrestrial planets once circled the star. They conclude that this latest evidence points to the same water "delivery system" that could have first brought water to Earth: asteroids.
Format(s) available: Online
Grades: 11-12, but the material can be adapted for use in other grades at the teacher's discretion
How to use it in the classroom

Teachers can use Tales of … Water-rich planetary building blocks found around white dwarf as:

A content reading selection. Teachers should discuss the meaning of unfamiliar vocabulary prior to having students read this selection.

An engagement activity. Have students read the selection. Ask them to describe what evidence scientists used to draw their conclusions.

An inquiry tool. Make a statement, such as, "Scientists claim to have evidence of water-rich planetary building blocks." Have students read the selection and write down as many questions as they can about the information in the text.

A source of information. Students can describe the evidence that led these astronomers to conclude that the white dwarf had (and maybe still has) planets circling it.

Related materials

Press release: "Water-rich Planetary Building Blocks Found Around White Dwarf"
http://hubblesite.org/newscenter/archive/releases/2013/38/full/

Press release: "Hubble Finds Dead Stars 'Polluted' with Planet Debris"
http://hubblesite.org/newscenter/archive/releases/star/2013/18/full/

Press release: "Hubble Uncovers Evidence for Extrasolar Planet Under Construction"
http://hubblesite.org/newscenter/archive/releases/star/2013/20/full/



Overview: Water-rich planetary building blocks