science final

Mr. cullars science 7th grade finals

observing

using one or more of your 5 sense to gather info

predicting

forecasting based on experience or evidence

models

creation of objects or processes

inferring

explaining things you observe

classifying

grouping items that are alike

scientific literacy

identify good information evaluate accuracy and apply knowledge to questions

quantitative

deal with numbers

qualitative

observations deal with descriptions

hypothesis

explanation to a scientific question that must be testable

why study science or think alike

learning of the natural world

all occupations integrate science

daily events include scientific thinking

scientific thinking evaluate advertised claim

requires multiple sources to confirm statements as true or false

open mindedness and skepticism

always be analytical and aware of biases

technologies compared to science

how people change the world to meet needs

study of the natural world

knowledge increases

explain hydrologic cycle

The continuous movement of water on, above, and below the surface of the Earth, involving processes such as evaporation, condensation, precipitation, and infiltration.

how sun affects currents

sun is the primary energy source

there is a changing in density

currents are constantly moving from the equator towards the poles

explain the relationships between the atmospheres

troposphere which has rain clouds and weather while these stratosphere holds the ozone layer mesosphere has the most meteoroid burn up here and then finally is the thermosphere which has no outer limits

how does the moon effect phases tides and seasons

moon revolves around the earth as earth orbits the sun

new moon and full moon the tides are highest range with spring tides

when the moon is at a 90 degrees angle there is the lowest tides which are neap tides

how are elements organized

in the periodic table by their atomic number as well as atomic mass and metals metalloids and gases

how matter can be separated or changed

matter is anything that has mass and takes up space

changed from physical or chemical reactions

same amount of mass is there nor created or destroyed

how can energy be transformed or transferred but never lost

matter can change through physical or chemical changes

matter exists before and after the change none is created or destroyed

energy can be changed from one form to another but cannot be created or destroyed

how can energy be transferred through a variety of ways

energy such as thermal can transfer conduction radiation and convection

electric energy can change to heat or light

chemical can convert to heat light or electrical

why do energy and matter continuously flow through organism to organism and physical environments

the sun is the source of energy

energy flows up through trophic levels

energy is transferred through food webs and food chains

how do survival and growth of organisms and populations within an environment depend on biotic and abiotic factors

ecosystems have biotic and abiotic features

abiotic include sunlight wind water and soil

biotic include food sources as well as predators