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SOL pass 4th grade

Fourth grade science

The mass of an object is: the amount of matter in an object - - how heavy it is.
The capacity of an eyedropper would be a few: milliliters
A milliliter of liquid is: a few drops
One thousand milliliters equals: 1 liter
A liter is close in volume to a: quart
An instrument used to measure mass is a: balance
The mass of a paperclip or a sheet of paper is about: 1 gram or 1g
The mass of a book could be about: 1 kilogram or 1kg
1000 grams equal: 1 kilogram
Volume of a liquid or capacity of a container is measured in these metric units: milliliters (mL)
Mass is measured in these metric units: grams (g)
A centimeter is about as long as your: fingernail
The length of each of these dashes - - - is about: 1 or 2 millimeters (mm)
The distance from your waist to the floor could be about: 1 meter or 1m
One-hundred centimeters equals: 1 meter
One thousand meters equals: 1 kilometer or 1km
Objects in motion have ______ energy. kinetic
Potential energy is ________ energy. stored
Due to the pull of gravity, the higher an object is off the ground, the more ____________ it has. potential energy
When I hold a ball in the air, it has potential energy. When I let go, the ball starts to fall. Potential energy changes to: kinetic energy
There are many forms of energy. Energy caused by the movement of electrons is: electrical energy
Energy stored in food, batteries and fossil fuels like coal and gasoline is: chemical energy
Energy in moving or spinning objects like gears, car wheels, or joggers, is _______ energy: mechanical
Machines make work easier and help us work more: efficiently
The six simple machines are: inclined plane, pulley, lever, screw, wedge, and wheel & axle.
Two objects rubbing together create: friction
Friction resists or stops motion, and creates: heat
Unless acted on by a force, objects in motion tend to stay in motion and objects at rest remain at rest. This is the principal of: inertia
It's harder to push a real truck than a toy truck because objects with more mass have: more inertia
Which will light a bulb, an open or closed circuit? A closed circuit
If your string of holiday lights goes dark when one little bulb burns out, the string of lights is a: series circuit
This circuit has more than one pathway for the flow of electrical current. If one bulb burns the others will remain lit. It is a: Parallel circuit
Electrical energy moves easily through materials that are: conductors.
Wires are usual made from ____ because it conducts electricity well. metal (often copper)
Material like rubber, plastic and wood do not conduct electricity well. They are: insulators
Magnets attract these metals: iron (steel) cobalt, nickel
Magnetism and _______ are very closely related. electricity
If you wrap wire around a nail and run electricity through the wire, you have created an: electromagnet
If you rub your feet on the carpet, or rub a balloon on a wool sweater, you may create: static electricity
Static electricity occurs when negatively charged _____ are rubbed off of one surface and on to another. electrons
Benjamin Franklin learned that lightning was a form of electricity. What kind of electricity? static electricity
Who invented the light bulb? Thomas Edison
Which plant part takes in water and nutrients? the root
Which part supports the plant and allows the movement of water and nutrients? stem
Which plant part makes food for the plant? leaves
The seed forms in the female reproductive part of the flower called the: pistil
Pollen forms on the ends of the male reproductive parts of the flower called the: stamen
The small leaves that form around the developing flower are the: sepals
Pollen is transferred from the stamen to the pistil in a process called: pollination
Most plants reproduce with seeds, but ferns and mosses reproduce with: spores
Green plants produce their own food in a process called: photosynthesis
Plants are green because of: chlorophyll
Many plants enter a period of ______ in the winter, which is similar to hibernation for animals. During this period most of their normal activities stop. dormancy
An organism's _____ provides food, water, shelter and space. habitat
All energy comes from _____ , and then cycles through the food webs to all of the animals in the community. the sun
_______ get energy directly from the sun and use it to make food. Plants
Because plants produce their own food, they are called ___________ . producers
Other organism do not get their energy from the sun. They get their energy by: eating plants, or eating animals that have eaten plants.
Organisms that get their energy from eating plants or other animals are called: consumers
The sun's energy cycles through the ecosystem in this order: sun->producers->consumers>decomposers
All of the interrelated food chains in an ecosystem make up a: food web
Food chains and food webs always start with a: plant
The food chain starts with a producer (a plant) and ends with a: decomposer
Decomposers like ______ break down organisms and recycle them back to the nutrient pool. fungi
All of the living and nonliving things in an environment make up: an ecosystem
Everything in an ecosystem depends on everything else. Humans often destroy ecosystems by: polluting ponds, chopping down forests, etc.
The specific place an organism has in the food web is the organism's: niche
The niche of every organism is different, and an organism's niche changes as it grows. A niche is the organism's role in the community, and includes: what it does, what it eats, and what eats it.
All organisms have _________ that allow it to survive in its environment. adaptations
Structural adaptations are __________ that help an organism survive, like long beaks, webbed feet, camouflage. body parts
Behavioral adaptations are things that organisms do to survive. Examples of behavioral adaptations are: migration, hibernation, instincts, etc
The measure of the amount of heat energy in the atmosphere is: temperature
The amount of moisture in the air is: humidity
The weight of the air causes: air pressure
Air circulates around the Earth in big chunks called: air masses
The boundary between two air masses is called a: front
A falling barometer often means: rainy weather ahead.
What kind of cloud brings stormy weather, thunderstorms, and sometimes even tornadoes? Cumulonimbus
Puffy white clouds that look like cotton balls are: cumulus clouds
High, thin, wispy clouds are: cirrus clouds
Which cloud forms a gray blanket over the sky, often bringing steady rain or drizzle? stratus cloud
This instrument measures air pressure is a: barometer
This instrument measures wind speed: anemometer
This instrument measures moisture in the air: hygrometer
This instrument measures precipitation: rain gauge
These severe storms usually form over water in the Caribbean: hurricanes
Earth is one of ____ planets that revolve around the sun. nine
Earth is the ______ planet from the sun. third
Venus, Mercury, Earth and Mars are the : rocky inner planets
What does the Earth have that allows it to support life? water and an oxygen rich atmosphere
How does the Earth's atmosphere protect the Earth? It blocks out most of the sun's damaging rays.
Ancient Greeks like Aristotle and Ptolemy believed _________ was the center of our solar system, and the planets and the sun revolved around us. the Earth
Copernicus and Galileo tried to convince the world that ________ was actually the center of the solar system, and all of the planets revolve around it, and not around the Earth. the sun
The NASA Apollo missions sent astronauts to the ______ . moon
About half of Virginia is considered to be in the Chesapeake Bay ________ because the surface water and all of the materials it carries drain into the Chesapeake Bay. watershed
Land drained by rivers west of Roanoke is part of the Mississippi _________. watershed
Much of Virginia is covered in ______, an important natural resource for Virginia. forests
An important energy resource mined in the southwestern part of Virginia is ________ . coal
Created by: PRO Teacher lit123