Clouds
Which type of cloud is fluffy and white and usually means nice weather?
Cumulus clouds
What are the three main states of matter?
Solid, liquid, gas.
When a scientist makes a guess about what might happen in an experiment, what is that called?
A hypothesis.
What instrument do meteorologists use to measure temperature?
Thermometer
A student wants to find out if plants grow faster in sunlight or shade. She plants two seeds in the same kind of soil and gives them the same amount of water. One plant is placed in sunlight, and the other is placed in the shade.
What is the independent variable in this experiment?
The amount of sunlight (sunlight or shade).
What type of cloud is usually associated with rainy or stormy weather?
Cumulonimbus clouds
Which property of matter describes how much space something takes up?
Volume
During an experiment, what should you do with your observations and measurements?
Record and collect data.
What instrument is used to measure the speed of the wind?
An anemometer
A student wants to see if plants grow taller when they are watered with salt water or fresh water.
What is the independent variable?
Answer: The type of water (salt water or fresh water).
Which type of cloud is high in the sky and looks thin and wispy?
Cirrus clouds
Which state of matter has a definite shape and a definite volume?
Solid
After you finish your experiment, what do you do to explain what you learned?
Draw a conclusion.
What do we call any form of water that falls from the sky, like rain, snow, sleet, or hail?
Precipitation
What is the definition of dependent variable
The dependent variable is what you measure or observe in an experiment.
What is the name of the cloud that forms low in the sky and looks gray and thick?
Stratus clouds
True or False: A gas always takes the shape and volume of its container.
True
A student wants to find out if plants grow better in sunlight or shade.
She writes down her question, makes a guess, and then tests it by growing plants in both conditions.
Which step of the scientific method is she doing when she grows the plants?
Doing the experiment (testing the hypothesis).
High air pressure usually brings ________ weather, and low air pressure usually brings ________ weather.
High = clear/fair, Low = stormy/rainy.
A student wants to find out if plants grow faster in sunlight or shade. She plants two seeds in the same kind of soil and gives them the same amount of water. One plant is placed in sunlight, and the other is placed in the shade.
What are the constants in this experiment?
The type of plant, the kind of soil, the amount of water, and the size of the pots.
How do clouds form?
Clouds form when water vapor cools and condenses into tiny droplets or ice crystals in the atmosphere.
Salt dissolved in water forms a ________.
Solution
A student wants to find out if the color of light affects how fast a plant grows.
She places three plants under red, blue, and white lights. She gives each plant the same amount of water and soil. After two weeks, she measures their height.
Which step of the scientific method is the student doing when she measures how tall the plants have grown?
She is collecting and recording data.
A weather report says it will be partly cloudy with a chance of rain in the afternoon.
What does “partly cloudy with a chance of rain” tell us about the weather?
It means there will be some clouds in the sky, but it won’t be completely cloudy, and there is a possibility that it might rain later.
A student wants to find out if plants grow faster in sunlight or shade. She plants two seeds in the same kind of soil and gives them the same amount of water. One plant is placed in sunlight, and the other is placed in the shade.
What is the dependent variable in this experiment?
How fast (or how tall) the plants grow.