Nombre Fecha Nota 6.º de Primaria · Natural Science · Unit 5: We save natural resources
1
The structure of the Earth 2,5 puntos Put the layers of the Earth in order, from the outside to the centre. core mantle crust
→ →
Solución: crust → mantle → core
The layer we live on is the… core mantle crust
Solución: crust
All the water on Earth (oceans, rivers, ice…) forms the… hydrosphere atmosphere biosphere
Solución: hydrosphere
2
Changes in the landscape 2,5 puntos The slow wearing away of rocks by water, wind and ice is… evaporation eruption erosion
Solución: erosion
Sudden movements of the Earth's crust are… tides earthquakes seasons
Solución: earthquakes
Volcanoes can create new land. ( True · False )
Solución: True
3
Rocks and minerals 3 puntos What type of rock is it?
It forms when magma or lava cools (like granite): ( igneous · sedimentary · metamorphic )
Solución: igneous
It forms from layers of sediments pressed together (like sandstone): ( igneous · sedimentary · metamorphic )
Solución: sedimentary
It forms when other rocks change because of heat and pressure (like marble): ( igneous · sedimentary · metamorphic )
Solución: metamorphic
The hardest mineral is… chalk talc diamond
Solución: diamond
4
Uses and saving resources 2 puntos Which mineral is used to make the «lead» of pencils? salt quartz graphite
Solución: graphite
Recycling metals helps to save natural resources. ( True · False )
Solución: True
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Challenge No cuenta para la nota This one doesn't count for your mark. It's for champions!
Why are some Canary Islands black sand beaches black? the sea is dirty it's painted the sand comes from volcanic rock
Solución: the sand comes from volcanic rock