Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
The energy from the Sun is the energy source that drives the water cycle.
|
Volume is measured in liters, milliliters, or cubic centimeters.
|
|
A scientist manipulates (changes) only one variable at a time to keep an experiment controlled.
|
Condensation occurs when water gains enough energy from the sun and warm air to change state.
|
|
To accurately measure the mass of an object in a container, subtract the mass of the container from the total mass of the substance + the container.
|
During the day, the land warms up faster than the ocean, causing air to rise above the land, resulting in wind blowing from the land to ocean.
|
|
Clouds form whenever air is cooled to its dew point.
|
You should read the bottom of the meniscus (curve) to accurately measure the volume of a liquid in a graduated cylinder.
|
|
About 97% of Earth’s water is found as salt water in the oceans.
|
The temperature at which condensation begins is called the dew point.
|
|
To model the phases of the moon, a student would need a light source to represent sunlight and two balls to represent the moon and the Earth.
|
A weather map is a model of the conditions in the atmosphere at a given time.
|
|
The greatest percentage of Earth’s fresh water consists of ice.
|
Water is called the universal solvent because it dissolves so many things.
|
|
Surface tension is the property of water that allows an insect to skim lightly across the surface of a pond.
|
The purpose of treating drinking water is to make the water safe and appealing to drink.
|
|
Elements cannot be broken down chemically into other substances.
|
Protons are in the nucleus and have a positive charge; Neutrons are in the nucleus and have no charge; electrons orbit around the nucleus and have a negative charge.
|
|
An electron moves around the central core of an atom
|
A chemical compound is CaCO3 (calcium carbonate – chalk).
|
|
A water molecule is two hydrogen atoms bonded to on oxygen atom ... H2O.
|
A chemical bond is the force that holds two atoms together.
|
|
Wetlands help control flooding by absorbing runoff from heavy rains.
|
Only three percent of Earth’s water is fresh water.
|
|
Most of Earth’s fresh water is found as ice.
|
Brackish water is water that is partly fresh and partly salty.
|
|
The James River Watershed is Virginia’s largest watershed and covers nearly ¼ of the state.
|
The James River is wide and slow moving where it meets the Chesapeake Bay.
|
|
To test the effectiveness of an insulator, a thermometer may be used.
|
A stopwatch could be used to measure the amount time it takes a ball to roll a certain distance (kinetic energy).
|
|
Inferences can be verified by measuring the materials, analyzing the data, and comparing the results.
|
The advantage of solar energy is it will not run out for billions of years.
|
|
Fossil fuels are non-renewable because they take millions of years to form.
|
Plants convert radiant energy into chemical energy through photosynthesis.
|
|
An estuary is a coastal inlet where fresh and salt water meet.
|
A watershed is the land area that supplies water to a river system.
|
|
An area in which all living and nonliving things interact is an ecosystem.
|
Increased runoff is one result of paving land within a watershed.
|
|
Pollution from factories can seep or soak into the land causing groundwater contamination.
|
Erosion by wind or water can cause loss of soil not protected by plants.
|
|
Erosion by wind or water can cause loss of soil not protected by plants.
|
Erosion by wind or water can cause loss of soil not protected by plants.
|
|
People can reduce the emissions that contribute to smog and the greenhouse effect by driving their cars less.
|
The Sun’s energy is the original source of heat trapped by the greenhouse effect.
|
|
Water molecules in all three states looks like this: solid -tightly packed, liquid - loosely packed, gas - spread out.
|
Energy conservation means reducing energy use and an example of this is recycling aluminum cans.
|
|
Heat from Earth’s surface escapes into space and some of it is trapped by greenhouse gases.
|
The ozone layer protects humans from the harmful effects of too much ultraviolet radiation like skin cancer.
|
|
Erosion and soil loss occur when soil is not protected by plant cover.
|
Locating a factory in a developed area may result in pollution seeping into the groundwater.
|
|
An example of point source pollution is when a chemical factory leaks chemicals into a nearby river.
|
Global warming may lead to the melting of the Antarctic ice cap.
|
|
It takes Earth about 24 hours to rotate one time.
|
The movement of one object around another is revolution.
|
|
Day and night are caused by the Earth’s rotation on its axis.
|
Earth has seasons because Earth’s axis is tilted as it moves around the sun.
|
|
Plants convert the Sun’s radiant energy into chemical energy during photosynthesis.
|
Fuels that take millions of years to form are considered fossil fuels.
|
|
It takes Earth about one year to revolve around the sun.
|
All of the inner planets are small in size and have rocky surfaces.
|
|
The Sun’s energy will not run out for billions of years is one advantage of solar energy.
|
If you wanted to prove that the increases in local rain acidity is the result of a local coal-burning plant, you should compare the schedule and amount of coal burned at the plant with the timing and acidity of rain during at least one week.
|
|
The smallest planet is Mercury.
|
The manipulated variable is the independent variable and the one that the scientist (I) change on purpose.
|
|
The metric measure for mass is kilogram.
|
Scientists measure temperature in degrees Celsius.
|
|
To ensure reliable results, a student should repeat the experiment and average the results.
|
To test the effectiveness of newspaper as an insulator, you should use a thermometer.
|