Year 7 Unit 4 Our warming planet

What word explains large-scale, long-term shift in the planet's weather patterns and average temperatures. Earth has had tropical climates and ice ages many times in its 4.5 billion years.

• Global Warming

• Climate Change

• Ice Age

Greenhouse Gas molecules absorb some of the solar energy.

• True

• False

Which gas is not a greenhouse gas?

• Carbon Dioxide

• Methane

• Oxygen

• Nitrous Oxide

What is a natural source of carbon dioxide?

• Volcano

• Cars

• Combustion engines

• Trees

A long period of reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glacier is known as

• A Permafrost

• Ice Age

• Frost Age

• Freeze thaw Age

Today 90% of the Earth is ice free

• True

• False

Temperatures in the UK have always been much the same as today

• True

• False

A cold, treeless, usually lowland area of far northern regions of earth. The lower levels of soil of are permanently frozen, but in summer the top layer of soil thaws and can support low-growing mosses, lichens, grasses, and small shrubs.

• Cold Desert

• Tundra

• Permafrost

What green house gas molecule is this?

• Water Vapour

• Carbon Dioxide

• Methane

Which of these things does not cause global warming?

• Using diesel and petrol in cars.

• Farming Animals for meat

• Wind Farms

• Cutting down trees