Keywords: Metals – Hardness – Luster – Density – Physical properties

Keywords: Rock dissolution – Acids – Reaction – Carbonates – Carbon dioxide

Keywords: Metals – Hardness – Luster – Density – Physical properties

Keywords: Waves – Spring – Vibration – Energy – Propagation

Keywords: Anaerobic respiration – Alcoholic fermentation – Carbon dioxide – Yeast – Sugar

Keywords: Excretion – Wastes – Kidneys – Sweat – Carbon dioxide – Detoxification

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?day and night – Earth’s rotation – sun – shadow – time

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 cyclecell cycle – mitosis – chromosomes – growth – cell division

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

Mixing and separation of substances mixing materials – separation – filtration – sedimentation – mixture

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

How does the angle of inclination of sunlight affect temperatures?sunlight angle – solar incidence – temperature – absorption – seasons

What is the maximum force?force – magnitude – comparison – mass – force vectors

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

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-metalsmetals – nonmetals – conductivity – luster – hardness – matter

Focus, epicenter, and faultearthquakes – focus – epicenter – fault – tectonic plates

How can the reaction rate be increased?reaction rate – catalysts – temperature – concentration – surface area

What makes rocks different from one another? rocks – minerals – color – hardness – texture – geology

Measuring changemeasuring change – observation – time – comparison – measurement

Do all types of motion appear the same when represented graphically?graphing motion – speed – time – types of motion – comparison

The acceleration due to gravitygravitational acceleration – free fall – motion – time – gravity