What type of plate boundary creates mid-ocean ridges?
Divergent boundary
What macromolecule includes enzymes and hormones?
Proteins
What is the chemical symbol for sodium?
Na
What is the largest ocean on Earth?
Pacific Ocean
What do contour lines on a map show?
Elevation
What process occurs when one tectonic plate sinks beneath another?
Subduction
What process allows cells to make exact copies of themselves?
➡️ Mitosis
What scale measures how acidic or basic a substance is?
pH scale
Which continent is the Sahara Desert located on?
Africa
What instrument measures temperature?
Thermometer
What type of rock forms from cooled magma or lava?
Igneous rock
What part of the cell controls what enters and leaves the cell?
➡️ Cell membrane
What type of bond involves sharing electrons?
Covalent bond
What line of latitude divides the Earth into Northern and Southern Hemispheres?
Equator
What type of map shows natural features like rivers and mountains?
Physical map
What layer of the atmosphere contains the ozone layer?
Stratosphere
What term describes a species that makes its own food?
Producer (autotroph)
What gas is produced during photosynthesis?
Oxygen
What country has the longest coastline in the world?
Canada
What climate zone is found near the equator?
Tropical
What theory explains the movement of Earth’s tectonic plates?
Plate tectonics
What process explains how species change over time?
Natural selection
What law states that matter is not created or destroyed?
Law of Conservation of Mass
What mountain range separates Europe and Asia?
Ural Mountains
What wind belt affects weather in the mid-latitudes of the U.S.?
Westerlies