Open up your notes at page 37, note 42, The Big Bang.

Hubbleapart

singularity billion

mass gravitytoms alaxies

lanets

solar

imobble

tar nergystar

olid atertar

evaporate cold

hin ense

electromagnetic

yearsspectrum

radio

universebig

heat

frequency

supernova

holes

Problems on page 69, Q. 1(j), 2 – 5.

continuouscontinuous

spectroscope

red orange greenblue

indigoviolet

ROYGBIV

Long wavelength

Short wavelength

yellow

lowhigh

wavelengthshot

red

bluetemperature

coloursline

wavelength

star

elements

2 & 3

Use the laminated reference sheets to work outthe elements on the pupil sheets.Page 70, Q. 6, 7 & 8.