All elements are composed of extremely small particles called ___________.
The measurement of the force of gravity on an object is the object's___________.
Table sugar and table salt are examples of ______________________.
Radio waves, visible light from the sun, infrared "rays" from heat lamps, the waves that heat food in a microwave oven, ultraviolet rays, and X-rays are all considered types of _______________________.
The energy of motion is called ________.
One example of a chemical change is _____________________.
dissolving salt in water
One example of a physical change is ___________________________.
Soil, salad, and sugar water are all examples of ___________.
H2O. CO2, and C12H22O11 are all examples of chemical ____________.
all are different states of matter
How do liquid water, ice, and water vapor differ from each other?
Fireworks exploding in the sky and giving off light are an example of an ______________.
What holds atoms together in a molecule?
The change in which ice absorbs energy and melts is a(n)_______________________.
Anything that has mass and takes up space is called __________.
The ability to do work or cause change describes ________.
During photosynthesis, plants transform electrmagnetic energy from the sun into ____________________.
When scientists create a representation of a complex process, the are________________________.
When scientists put things into categories or group together items that are alike in some way, they are ____________.
Making a foecast of what will happen in the future based on past experience or evidence is called _______________.
Explaining or interpreting the things you observe based on reasoning from what you already know is called________________.
Observations that deal with a number or amount are called _______________
Observations that deal with descriptions that cannot be expressed in numbers are called ____________________.
Using one or more of your senses to gather information is called ____________.
Being able to identify good sources of scientific information and apply the knowledge to problems in your life is part of having_____________.
A statement that describes what scientists expect to happen every time under a particular set of conditions is a _______________.
A summary of what you have learned from a scientific experiment is called a _____________.
In a scientific experiment, the responding variable can also be called the _____________.
An organized way to collect and record scientific observation is with a ________________.
The factor that may change in response to the manipulated variable is called the __________.
In science, a hypothesis must be _________.
A possible explanation for a set of observations or possible answer to a scientific question is called a ______________.
Which branch of science includes the study of magnetism?
Which branch of science includes the study of plants, animals, and the human body?
earth and space science
Which branch of science includes the study of the stars?
can spread apart
The particles of a gas---a.) are packed very closely, b.) do not move, c.) or can spread far apart
a fixed volume
A liquid has---a.) a rigid shape, b.) a fixed volume, c.) neither a rigid shape nor fixed volume, or d.)both a rigid shape and fixed volume.
A kind of matter that keeps its shape and volume is a ____________.
A liquid with low viscosity---a.) has a definite shape, b.) flows quickly, c.)flows slowly, or d.)fills its container.
As the fas in a rigid container is heated, it--- a.)pressure increases, b.)volume increases, c.)pressure decreases, or d.)volume decreases.
Because of surface tension, a liquid---a.)resists flowing, b.)forms a crystalline solid, c.)takes the shape of its container, or d.)forms droplets.
A substance that takes the shape and volume of its container is a _______.
The change from a gas to a liquid is called __________.
how variables are related
A graph is a diagram that shows _______________________________.
According to Boyles law, as the volume of a gas is made smaller, the pressure of the gas __________.
As the temperature of a gas in a rigid container gets higher, its pressure __________.
hard and often
At high pressure, gas particles push against the wall of the container---a.)hard and often, b.)very gently, c.)rarely, d.)never
puddle drying up
Which is an example of vaporization---a.(puddle drying up, b.)ice cream cone dripping, c.)drops of dew on grass
When the particles of a gas lose thermal energy, they move---a.)faster, b.)slower, c.)at the same speed, d.)they stop
Making ice cubes from liquid water is an example of ____________.