Keywords: Soil – Sand – Silt – Humus – Rocks

Keywords: Soil – Microorganisms – Bacteria – Decomposition

The water cycleKeywords (English): water cycle – evaporation – condensation – precipitation

Which one allows water to seep faster: soil or gravel?soil – gravel – permeability – water flow – filtration

Formation of a low-pressure centerlow-pressure center – air pressure – wind – weather – temperature

How raindrops are formedKeywords (English): rain formation – condensation – clouds – water cycle

Tornado vortex inside a bottletornado – vortex – air pressure – water rotation – weather phenomena

Identifying the Effects of Weathering

Keywords: Weathering – Erosion – Deposition – Rocks – Environmental factors

Keywords: Soil types – Clay – Sand – Humus – Fertility

Keywords: Decomposers – Soil – Bacteria – Decomposition – Microorganisms

Keywords: Water cycle model – Evaporation – Condensation – Precipitation – Model

Keywords: Soil components – Soil types – Soil properties – Plant growth – Soil moisture – Organic matter

:Objective To identify the presence of invisible air pollutants and demonstrate that air contains suspended particles such as dust and smoke that are not visible to the naked eye.:Tools White paper _ Adhesive material (Vaseline or oil) _ Adhesive tape _ Open place inside the room _ Smoke source:Step......

Objective To understand how different amounts of water affect soil piles of various sizes and simulate the effect of rain on landformsTools Tray – 3 plastic cups with different amounts of soil – water – watering can – ruler – graduated cylinder – plastic spoonSteps Pour each cup of soil carefully in......