Listen&Learn: Carbon Datingþ Scientists need carbon dioxide online dating to find out the age of a fossil.

Listen&Learn: Carbon Datingþ Scientists need carbon dioxide online dating to find out the age of a fossil.

Pre-listening vocabulary

  • carbon dioxide: a common substance element this is certainly necessary for lives
  • fossil: the keeps of a system that stayed in the past
  • radioactivity: the ability of a compound to create energyfrom the decayof its particles
  • decay: to break all the way down or decompose
  • half-life: the amount of time required for 50 % of a material to totally decay
  • quote: to create a reasonable imagine
  • fossil fuel: normal fuels like oils orcoal

Hearing activity

Gapfill workout

Awareness inquiries

1. boffins use carbon dioxide dating to ascertain

2. 5700 decades is the period of time it will require

5700 years is the amount of time it requires for 50 % of a fossil’s carbon-14 to decay.

3. Carbon dating might more challenging in the future because

Carbon dioxide dating could be harder as time goes on because there’s continuously secure carbon-dioxide within the atmosphere.

Discussion/essay concerns

  1. Individual non-renewable gas use is a big problems. Skin tightening and stages are receiving higher, and weather changes is going to affect the community in lots of ways. (more…)