The drawing shows puffy, white clouds. When this type of cloud appears, what kind of weather usually occurs?
The diagram above shows a weather map. Which city is most likey to expereince the cold front first?
Which type of severe event is most likely to occur during the following weather conditions?
- cold front moving in behind warm, moist air
- heavy, constant winds
- sudden hail
- unstable atmosphere
The reading on a barometer rises when the air ________
Which two factors are most responsible for a flash flood?
The distance from rivers and the time when it rains
The temperature of the rain and the time since it last rained
How much rain is falling and how long the rain lasts
How far the water must flow and the time of the year it is raining
The map above is used to predict the weather for Tuesday. Which city most likely will be clear and dry?
How do the conditions for a tornado differ from teh conditions for a hurricane?
Tornadoes never form when there is rain, while hurricanes always form with rain.
Tornadoes form under low pressure, while hurricanes form under high pressure
Tornadoes form in a stable atmosphere, while hurricanes form in an unstable atmosphere
Tornadoes form over land, while hurricanes form over bodies of water
When a molecule is separated into its component parts, it forms _________
Phyllis investigated what happened when she added some different substances to water. Which substance can combine with water to form a solution?
What is a MAJOR difference between a mixture and a compound?
Mixtures are made only of solids.
Compounds are made of only liquids.
Properties of the substances in the mixture keep their original properties.
The substances in a mixture keep their original properties.
Which property shows that an ice cube, a pencil, and a penny can all be be classified as solids?
Each object takes the shape of its container.
Each object fills the volume of its container.
Each object has a definite shape in any container.
each object flows easily from one container to another.
After a few minutes, Guillermo noticed the water had turned light brown. Particles from the tea dissolved in the water and changed its color. Which best describes what formed when the tea bag was placed in the water?
When water is changed from a liquid to a gas, what occurs?
The atoms lose electrons.
A new compound is formed.
Molecules spread farther apart.
Hydrogen is separated from oxygen.
The circles in the bottles above represent the same particles of matter. Which pattern of particles represents a gas in a bottle?
Draw three boxes. In each box add dots to show each the particles in each type of matter. Solid - Liquid - Gas
Which statement is true about atoms?
Atoms are made of molecules.
Atoms have an electric charge.
Atoms have the same weight.
Atoms are seen by using special tools.
Which of these is an element?
Which beaker (above) contains a solution?
Soil and Water
Rocks and Water
Sugar and Water
Oil and Water
What is a solution?
Pennies are made of zinc with a layer of copper on top. If a penny is heated, the copper and zinc can combine to form brass. Which term best describes brass?
Draw a picture to show the compound molecules that make up water.
Label the following diagrams: mixture, element, compound, neutrons