1. How Much is a Billion? (compared to a million) 1 million seconds = about 12 days 1 billion seconds = about 32 years 1 million minutes ago was approximately 2 years ago 1 billion minutes ago was the year 114AD 1 million hours ago it was the dawn of the 20th century (1901) 1 billion hours ago was around the time we think the first modern humans walked (141k ya) 1 million days ago it was about 700BC 1 billion days ago was 2.7 million years BC

2. To Understand the Evolutionary Timescale Each person gets 92cm worth of paper Scale out 4.6 billion years on that paper (the approximate age of the Earth) – The 4.6 billion years should use up all 92 cm. Why are we asking you to use 92 cm HINT HINT… – Check with your teacher to see if your scale is appropriate

3. NEXT… Pick 10 MAJOR events in the history of the Earth (and life) – Do not focus on human events! You have 4.6 billion years to look at! Get this list approved Identify approximately when they occurred and place a sketch or small picture at the appropriate point. Label what happened

4. E.g. if you did the last 20 years Today2 ya6ya10ya20ya4 ya8ya12 ya16ya14 ya18ya MJ 6-peats You all are born Y2k is a bust 9/11 Iraq War Obama Elected Burj Khalifa New Jones Built