Listen&Learn: carbon dioxide Datingþ Scientists make use of carbon dioxide dating to learn the age of a fossil.
Pre-listening language
- carbon dioxide: a typical substance aspect that is necessary for life
- fossil: the remains of an organism that existed in the past
- radioactivity: the power of a substance to generate energyfrom the decayof their particles
- decay: to split all the way down or decompose
- half-life: the amount of time it can take for 1 / 2 of a material to totally decay
- estimate: to make a reasonable imagine
- fossil fuel: all-natural fuels like oils orcoal
Hearing task
Gapfill fitness
Understanding inquiries
1. Scientists utilize carbon dating to ascertain
2. 5700 age is the length of time it will require
5700 many years is the amount of time it will require for half of a non-renewable’s carbon-14 to decay. (more…)
