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How do we know if something is alive
growth, reproduction, movement, respiration, sensitivity, excretion, and nutrition
Name all forces
Push Pull Magnetism Gravity Friction Acceleration Spring Tension Applied Drag Buoyan
How do plants grow
Plants grow through photosynthesis, which is the process of converting light energy into chemical energy
How do plants get poisoned
Poisoning occurs when plants absorb harmful chemicals from the soil or air
What are the three laws of motion
In the first law, an object will not change its motion unless a force acts on it In the second law, the force on an object is equal to its mass times its acceleration In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction
What can forces and stretches do
Forces can stretch or compress objects.
What are moments
Moments are the turning effect of a force. Force x distance
What is pressure
Pressure is the force exerted per unit area
What are distance time graphs
Distance-time graphs show the distance traveled by an object over time.
What is Terminal velocity
Terminal velocity is the maximum speed an object can reach while falling through a fluid
Cell parts: + what are bacteria, viruses and fungi
Cells have many parts including the nucleus, cytoplasm, and cell membrane. Bacteria / viruses / fungi / Disease: Bacteria, viruses, and fungi are microorganisms that can cause diseases
What are antibiotics
Antibiotics are medicines that kill or stop the growth of bacteria.
What is food preservation/ fermentation
Food preservation is the process of preventing food from spoiling. Fermentation is the process of converting sugar into alcohol or acid.
What is photosynthesis
Photosynthesis is the process by which plants convert light energy into chemical energy
What chemical test can you do for oxygen
Oxygen can be tested using a glowing splint.
What is lift in aeroplanes
Lift is the force that keeps airplanes in the air.
What is the ozone layer
The ozone layer is a layer of ozone gas in the Earth’s atmosphere that protects us from harmful UV rays
What is water
Water is a colorless, odorless, and tasteless liquid that is essential for life
What test can be done for water
Water can be tested using cobalt chloride paper.
What test can be done for hydrogen
Hydrogen can be tested using a burning splint.
What is respiration
Respiration is the process by which living things convert glucose into energy
What is seed germination
Seed germination is the process by which a seed grows into a plant.
What are sound waves
Sound waves are vibrations that travel through the air
What are waves
Waves are disturbances that travel through a medium (object)