Investigation of factors affecting solubility

DNA replication

Creating a Model of Earth's Interior (Experimental Approach)

Instantaneous velocity vectors

Classification of minerals

Rock dissolution by acids

Classification of minerals

How do waves propagate in a spring?

Proof of completion of anaerobic respiration (alcoholic fermentation)

Experiment Description:Waste Excretion in the Human BodyMaterials Used:Red beans (represent red blood cells).Salt (represents urea).Rice (represents proteins).Filter paper.Funnel.Beaker.Water.Objective:To simulate the process of waste excretion in the kidneys by separating waste (urea) from the bene......

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......

What is the reason for the occurrence of night and day?

the goal:Draw a conclusion about the Law of Conservation of Mass.Materials and tools:Wire crucible - Test tube - Balloon - Sensitive scale - Heater - Hot water bath - Test tube holder - Stopwatch - TissuesSteps:1. Place a piece of wire crucible in a medium-sized test tube.2. Attach the balloon nozzl......

Phases of mitosis - Cell cycle

Three states of matter

Mixing and separation of substances

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

How does the angle of inclination of sunlight affect temperatures?

What is the maximum force?

Formation of a low-pressure center

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......

Metals and non-metals

Focus, epicenter, and fault

How can the reaction rate be increased?