Physical Science
What is matter?
anything that occupies space and has mass
what is an ecosystem?
a system of living organisms and physical environment that interact with each other
What 3 things do plants need for photosynthesis?
Sunlight, water and carbon dioxide
what makes up only 5% of the universe?
stars, planets and galaxies
What is a design for?
to solve problems
What are 4 fundamental states of matter?
solid,liquid,gas,plasma
what are the top 3 ecosystems?
freshwater, marine, and terrestrial
How do enzymes function to catalyze reactions?
it speeds up a chemical reaction but remains unchanged at the end
does space exist by itself?
No
What is the difference between a scientist and an engineer?
A scientist discovers and understands the natural world using scientific methods. And engineer designs/builds using scientific principles
Energy is the ability to cause change? T or F?
True
what is an organism?
any living thing like a plant or animal
Which division of geology studies earths materials and process on the surface?
Physical geology
how do stars form?
in giant clouds of cold dense gas and dust in the space
what is one process of analyzing a design problem?
define the problem
What force makes us move?
Frictional
what do organisms need to survive?
Nutrients, water and correct environment
What are clouds made of?
tiny drops of water or ice crystals
dark matter is stuff in space that has no gravity. T or F?
False
what is a model?
representation of objects or systems
What is motion?
the change in an objects position relative to another object.
What is photosynthesis?
The process plants use to make food
what are 4 types of precipitation?
sleet , hail, rain, snow
A___________ is used to measure are temperature.
Thermometer
____________ is used by scientist to gather information and data.
Scientific Equipment