| Question | Answer |
| What is weather? | the condition of the air at a given time and place |
| What is humidity? | the amount of water vapor in the air |
| What are cumulus clouds? | a puffy cloud that forms at almost any altitude |
| What are cirrus clouds? | a thin, wispy cloud mostly made of ice crystals |
| What are stratus clouds? | a cloud forming a wide sheet across the sky with its base near the earth's surface |
| What is fog? | a stratus cloud that forms near the earth's surface |
| What are the 4 conditions that affect weather? | temperature, wind, moisture in the air, and air pressure |
| How does the wind form? | cold air sinks, pushing warm air up, the warm air cools as it rises and sinks. The cycle repeats itself. |
| What is heavier: warm air or cold air? | cold air is heavier |
| What are the 4 parts of the water cycle? | evaporation, condensation, precipitation, collection |
| What is evaporation? | the sun heats up the water collected on Earth's surface and turns it into water vapor. |
| What is condensation? | water vapor in the air gets cold and changes back into liquid, forming clouds |
| What is precipitation? | it occurs when so much water has condensed that the air cannot hold it anymore, so the water falls to the earth as rain, snow, sleet, or hail |
| What is collection? | water on earth is collected in oceans, rivers, lakes, puddles, or soaked into the ground |
| What are thin, wispy clouds that are made of ice crystals? | cirrus clouds |
| What are puffy clouds that look like cotton balls? | cumulus clouds |
| What are clouds that stretch out across the sky, like a blanket? | stratus clouds |
| What kind of air is high pressure made of? | heavy, cold air |
| What kind of sky does high pressure usually bring? | clear skies |
| What kind of air is low pressure made of? | light, warm air |
| What kind of skies does low pressure usually bring? | cloudy skies |
| What direction does wind travel? | high pressure to low pressure |
