Living World
What is the science that studies relationships between living things and their environment?
Ecology
What is the smallest unit of matter?
Atom
What layer of the atmosphere contains our weather?
Troposphere
What force stretches or pulls an object?
Tension
What part of the cell controls all cell activities?
Nucleus
What are the three characteristics organisms must have to be considered the same species?
Look similar, reproduce together, and produce fertile offspring.
What are the three states of matter?
Solid, Liquid, Gas
What process wears down the Earth's surface?
Erosion
What force squeezes or pushes an object?
Compression
What part of a plant cell carries out photosynthesis?
Chloroplast
What is the difference between a population and a species?
A species is one type of organism; a population is all members of that species in one area.
What is density?
The amount of mass packed into a certain volume.
What is the movement of Earth around the Sun called?
Revolution
What type of motion does a bicycle wheel have?
Rotational motion
What is the difference between sexual and asexual reproduction?
Sexual reproduction involves two parents; asexual reproduction involves one parent.
What adaptation is shown when wolves hunt in packs?
Behavioural adaptation
What type of mixture is salt water?
Homogeneous mixture (solution)
What causes day and night?
Earth's rotation on its axis
What type of guide controls the motion of a drawer?
Translational guide
What is the role of the mitochondria?
Produces energy for the cell.
What are the five kingdoms?
Animal, Plant, Fungi, Monera (Bacteria), and Protista
A substance has a pH of 3. Is it an acid, base, or neutral?
Acid
Put the layers of Earth in order from outside to inside.
Crust → Mantle → Outer Core → Inner Core
Name three constraints engineers must consider when designing an object.
Human, Technical, Physical, Industrial, Economic, or Environmental
Name the stages of a plant's reproductive cycle in order.
Pollination → Fertilization → Fructification → Germination → Flowering