Life Lines
This organ pumps blood throughout the body to maintain circulation.
What is the heart?
This type of compound is hard, brittle, and conducts electricity when dissolved in water.
What is an ionic compound?
This shaking of the ground is caused by the sudden release of energy in Earth’s crust.
What is an earthquake?
This star is at the center of our solar system.
What is the Sun?
A child on a swing demonstrates the continuous conversion between these two forms of mechanical energy.
What are kinetic energy and potential energy?
This system delivers oxygen from the lungs to body cells.
What is the circulatory system?
This element can form four covalent bonds because it has four valence electrons.
What is carbon?
This opening in Earth’s surface allows magma, gases, and ash to escape.
What are volcano?
This imaginary line circles Earth halfway between the North and South Poles.
What is the equator?
The horizontal motion of a projectile is constant because this force does not act in that direction.
What is gravitational force?
When a population cannot survive a sudden environmental change, this final outcome occurs.
What is extinction?
This rule explains why atoms gain or lose electrons to become stable.
What is the octet rule?
This type of energy comes from heat stored beneath Earth’s surface.
What is geothermal energy?
This climate event brings unusually warm ocean waters in the Pacific, disrupting normal weather patterns and often causing drought in the Philippines.
What is El Niño?
Moving air spins the blades of a turbine. The turbine drives a generator, producing electricity. What is the sequence of the energy transformation?
What is Kinetic Energy→ Mechanical Energy → Electrical Energy?
This habit reduces lung efficiency and harms breathing.
What is smoking?
When electrons drop from higher to lower energy levels, this is released.
What is light?
This zone around the Pacific Ocean is famous for frequent earthquakes and volcanic eruptions.
What is the Ring of Fire?
As altitude increases, this property of the atmosphere decreases, making high mountains colder than lowlands.
What is temperature?
A _____force acting for a long time can produce the same impulse as a _____force acting for a short time.
What is a small force and a large force?
This inheritance pattern shows both traits equally, like AB blood type.
What is co-dominance?
This describes the space around the nucleus where electrons are most likely to be found.
What is the electron cloud?
This scale measures the strength of earthquakes based on the energy released.
What is the Richter scale?
This geographic factor measures how far north or south a place is from the equator and strongly influences climate.
What is latitude?
A soccer ball of mass 0.5 kg is kicked with a force of 50 N for 0.1 s. What is the impulse given to the ball?
What is 5 N·s?