Unit One: Chemical Reactions. Lesson Three: Chemical equation and chemical reaction.This experiment aims to understand the chemical reaction process by igniting a strip of magnesium in the air, as this experiment represents the reactants, the reaction condition and the reaction product.

Food Chain Model

Skeletal System

Chemical Change

the goal:Revealing how photosynthesis and cellular respiration work together in an ecosystem.Materials and tools:Bromothymol blue (BTB) solution - Glass beaker - Test tubes - Aluminum foil - Aquatic plant.Steps:1- Add a quantity of bromothymol blue (BTB) solution to a glass beaker using a pipette.2-......

the goal:Explaining the factors that affect the process of photosynthesis.Materials and tools:Glass beaker - Glass funnel - Test tube - Aquatic plant - Sodium bicarbonate - Light sourceSteps:1- Fill the glass with water.2- Add a quantity of sodium bicarbonate to the water.3- Place the aquatic plant......

Adaptation of animals and plants

Three states of matter

Mixing and separation of substances

Which one allows water to seep faster: soil or gravel?

Which types of soil are best for plant growth?