Bio9 - U2Q1

Examples of Fuel

Peat, wood, leaf, gasoline, etc etc

burn scar

evidence of a previous wildfire that has left a mark on the land; zombie fires likely to be found near [ term ].

How does peat compare to other fuel types we investigated?

peat has more concentrated matter: it contains more carbon and more energy to release as carbon dioxide and heat

3 things a fire needs

oxygen, heat, fuel

using btb: detecting change in energy or matter?

matter

observing light: change in energy or matter

energy

observing smoke from burning fuel: change in energy or matter?

matter

measuring grams: change in energy or matter?

matter

measuring temperature: change in energy or matter?

energy

what 2 things go in box A? what 2 things go in box B?

a - co2 + h2o / b - sugar + oxygen

name the process in the image

celluar respiration

name the process in the image

photosynthesis

Earth’s tilt?

The angle at which earth’s axis is inclined, leading to seasons. Has changed at different times, results in changes to solar radiation.

impacted by increased amount of greenhouse gases in the atmosphere

climate change

zombie fires

can smolder underground during cold periods. (even under snow + ice) and reignite above where conditions are favorable

permafrost thawing consequence

Higher temperatures cause permafrost to thaw, allowing peat (stored carbon) to decompose. Also allows peat to dry out and be more available as a fuel source.
BOTH (increased decomposition and fire) add carbon dioxide to atmosphere, which results in more warming!

Peat

Forms over time by layering plant material underwater; peat can be used as a energy source but is also a fuel source for
zombie fires in the Arctic circle.

temperature effect on decomposition

Higher temperatures lead to
faster breakdown of organic matter, lower temperatures slow down decomposition.

thawing of permafrost

leads to the release of stored carbon and methane into the atmosphere, including greenhouse gases

yeast

a decomposer that turns sugar into carbon dioxide and alcohol.

decomposition

the breakdown of matter into simpler substances like carbon dioxide or water

photosynthesis

the process in which plants use sunlight to convert carbon dioxide and water into glucose and release oxygen

celluar respiration

break down of sugar using oxygen to produce energy and release carbon dioxide and water as byproducts

aeroobic respiration

celluar respiration that requires oxygen and provides more energy compared to [ opposite ] respiration

anaerobic respiration

celluar respiration that requires oxygen and provides less energy compared to [ opposite ] respiration

do you want to kys studying this the night before the quiz?

yes