Ecosystems (Gr. 7)
All the members of one particular species in a given area
What is a population?
A scientist who studies, identifies, and classifies rocks
What is a geologist?
Thick blood vessels that carry blood away from your heart; this blood usually carries oxygen
What are arteries?
Name the 3 states of matter
What are solids, liquids, and gasses?
The closest planet to the sun
What is Mercury?
Large areas of Earth that have roughly the same temperatures and the same amounts of rain or snow
What is a biome?
Hot molten rock under Earth's surface
What is magma?
A wide, short tube that gets rid of the wastes in your body that are left over after digestion
What is the large intestine?
A substance that contains only one kind of particle
What is a pure substance?
A glowing ball of gas (composed of helium and hydrogen) in space that gives off light and heat
What is a star?
Characteristics that help organisms survive in their environments
What is adaptation?
Pure, naturally occurring substances that are found in Earth's crust
What are minerals?
This system is made up of 2 kidneys and a bladder
What is the excretory system?
Any substance that contains 2 or more pure substances and therefore has 2 or more kinds of particles
What is a mixture?
A robotic manipulator arm developed by the Canadian Space Agency that is controlled by astronauts inside the space shuttle
What is the Canadarm?
A model that shows how food energy passes from one organism to another in a feeding pathway
What is a food chain?
Rock-like casts, impressions, or actual remains of organisms that were covered by sediment when they died, before they could decompose
What are fossils?
Strong, elastic groups of cells that stretch and tighten, like rubber bands. They hold the bones of movable joints together
What are ligaments?
Picking apart, filtering, using density, using magnetism, dissolving, and evaporating
What are the ways to separate different types of mixtures?
The hottest planet in our solar system
What is Venus?
The way that an organism fits into an ecosystem, in terms of where it lives, how it obtains its foods, and how it interacts with other organisms
What is a niche?
Rock that is formed by the breaking down, depositing, compacting, and cementing of sediment
What is sedimentary rock?
Name the 3 kinds of blood cells
What are white blood cells, red blood cells, and platelets?
A cloudy mixture in which clumps of a solid or droplets of a liquid are scattered throughout a liquid or gas (e.g. muddy water or tomato juice)
What is a suspension?
A) Rocky, airless remnants leftover from the formation of the solar system 4.6 billion years ago (aka space rubble)
B) This object creates a streak of light when it enters the Earth's atmosphere
C) Frozen leftovers from the formation of the solar system composed of dust, rock, and ice
What is an asteroid, meteor, and comet?