DNA Drama 🧬
What type of blood circulation carries blood from the heart to the lungs?
What type of blood circulation carries blood from the heart to the lungs?
Why are metamorphic rocks different from igneous rocks?
They form from heat and pressure, not cooling magma
What is the difference between a comet and an asteroid?
Comets are icy and form tails; asteroids are rocky
Which part of the cell controls most activities of the cell?
Nucleus
Why does the Moon appear to change shape during the month?
Because of the positions of the Moon, Earth, and Sun
Why do coastal areas have milder climates than inland areas?
Water heats and cools more slowly than land
What is the difference between a compound and a mixture?
A compound has chemically bonded elements; a mixture does not
Which law states that mass is conserved during a chemical reaction?
Law of Conservation of Mass
Which law explains why rockets can move in space?
Newton's Third Law of Motion
What process drives the movement of tectonic plates?
Convection currents in the mantle
Why is work zero when you carry a bag while walking on level ground?
Because force and displacement are not in the same direction
Which human body system produces hormones?
Endocrine system
What is the difference between speed and velocity?
Velocity includes direction, speed does not
What causes seasons on Earth?
The tilt of Earth's axis
What is inertia?
The tendency of an object to resist a change in motion
Why is water considered a polar molecule?
It has unequal sharing of electrons, giving it partial charges
Which layer of the atmosphere contains the ozone layer?
Stratosphere
Which element has the atomic number 17?
Chlorine
Why do astronauts feel weightless in orbit?
Because they are in free fall around Earth
What causes tides on Earth?
The gravitational pull of the Moon and Sun
What will likely happen to the Sun after it runs out of fuel?
It will become a red giant then a white dwarf
Why is Venus hotter than Mercury even though it is farther from the Sun?
Because of its thick atmosphere and greenhouse effect
Why are chloroplasts important to plants?
They carry out photosynthesis
What happens to particles when a solid turns into a liquid?
They gain energy and move more freely
Which process in cells produces the most ATP?
Cellular respiration in mitochondria