Keywords: Soil – Sand – Silt – Humus – Rocks

Keywords: Light – Plants – Photosynthesis – Growth – Energy

Keywords: Soil – Plants – Growth – Requirements – Water

Keywords: Water transport – Plant – Roots – Vessels – Transpiration

Effect of light on the appearance of chlorophyll in some plantsKeywords (English): chlorophyll – light – photosynthesis – plant pigments

Animal and plant cell under a microscopeKeywords (English): animal cell – plant cell – microscope – nucleus – organelles

Watching onion cells (introductory experiment)Keywords (English): onion cells – microscope – cell wall – nucleus

Adaptation of animals and plants

the goal:To discover how the water content in plants affects their weight.Materials and tools:Balance scale - Apples - Stopwatch - Strawberries - OrangesSteps:1. Weigh some slices of apple using the balance scale.2. Place the apple slices on a plate and let them dry completely, then weigh them again......

Three states of matterstates of matter – solid – liquid – gas – physical changes

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

The goal of the experiment:Explain the difference between materials in terms of densityTools:Copper wire - piece of gold - platinum ingot - ice cubes - piece of coal - cork - paper - piece of wood - ruler - screwSteps:Put the materials in front of you in the tub and control the liquid density from t......

The goal of the experiment This experiment aims to practically determine the density of a liquid. Experiment Tools Scale - Included tester - different liquids with different volumes Steps of the experiment Choose a few different sized liquids from the lab library. Weigh the tester blank inserted and......

Compare densitiesKeywords (English): density comparison – mass – volume – materials

the goal:- Explaining the relationship between buoyant force, weight of an object in air, and its apparent weight in water.- Applying the Archimedes' principle to buoyancy.- Inferring the effect of surface area and known mass density on the amount of water displaced.Materials and tools:Different wei......

Magnetic force test

Volcano eruptionvolcanic eruption – magma – lava – pressure

the goal:Create a model illustrating the movement of the Earth during an earthquake.Materials and tools:Pieces of cork - a bowl - soil - a wooden piece.Steps: 1- Place the two pieces of cork next to each other in the bowl.2- Cover the cork pieces with soil.3- Gently pull the bowl about 5 c......

Experiment on Volume and CompressibilityVolume is the amount of space that matter occupies in the universe. Compressibility is the ability of a substance to reduce its volume when subjected to external pressure. Liquids and solids have nearly fixed volumes, while gases are the most compressible subs......

The Effect of Magnets on Different Materials (When Do They Attract?)