4 TERM SCIENCE WORSHOP 5AB

4 TERM SCIENCE WORKSHOP 5AB

Multiple Choice

The light travels in

• waves

• straight line

• metal objects

• none

Multiple Choice

A shadow is formed when

• the light pass throught an object

• there is not light

• the light is blocked by an object

• the rain has finished

Multiple Select

Choose refraction pictures

Multiple Select

Choose the pictures with irregular reflection

Multiple Choice

The action of the wind, water, rain and heat in the soil formation is called:

• humus

• weathering

• loss of vegetation

• ploughing

Multiple Choice

The mixture of rocks and decaying leaves and animals is called:

• foundation

• clay

• weathering

• humus

Multiple Choice

What is the cause of the erosion of cutting down trees?

Multiple Choice

A cause of the erosion is the overgrazing, what is?

Multiple Choice

Soil conservation

This strategy hills are cut in steps along slopes and reduces speed of water:

• cover crops

• terrace farming

• afforestation

• embankments

Multiple Choice

Soil conservation

This strategy helps anchor the soil particles in place after harvesting crop:

• cover crops

• terrace farming

• afforestation

• embankments

Multiple Choice

An earthquake is:

• Series of very huge waves moving speedly towards the shore

• opening of the earth surface which allows hot molten rocks

• The land dries up due to prolonged dry weather

• trembling or shaking of the earth’s surface

Multiple Choice

The natural disaster when:

the land dries up due to prolonged dry weather

• tsunami

• flood

• drought

• volcano

Multiple Choice

The tornado is:

• dry weather

• a violent storm

• Submerging of surrounding areas

• extremely hot mixture of gases

Multiple Choice

Volcanoes that have erupted in the past but are inactive now:

• active

• dormant

• extinct

Multiple Choice

The shale rock is a/an:

• igneous rock

• metamorphic rock

• sedimentary rock

Multiple Choice

The gneiss rock is a/an:

• igneous rock

• metamorphic rock

• sedimentary rock

Multiple Choice

The marble rock is a/an:

• igneous rock

• metamorphic rock

• sedimentary rock

Multiple Choice

What is a conglomerate rock?

Multiple Select

Choose non-metallic minerals