In DNA, adenine always pairs with this base.
What is thymine
This structure surrounds all cells and controls what enters and exits.
What is the cell membrane?
Rain, snow, sleet, and hail are all forms of this water cycle process.
What is precipitation?
These white, fluffy clouds usually indicate fair weather and look like cotton balls.
What are cumulus clouds?
Plants use this form of energy from the sun to make their own food
What is light or solar energy?
This scientist duo is credited with discovering the double-helix structure of DNA in 1953.
Who are Watson and Crick?
In cells with membrane bound organelles, this is where DNA is found.
What is the nucleus?
This process in the water cycle turns liquid water into water vapor.
What is evaporation?
These low level, uniformly white or gray clouds may appear as mist or fog.
What are stratus clouds?
This type of energy is associated with objects in motion.
What is kinetic energy?
The two strands of a double helix are __________ to one another
This organelle is found only in plant cells and is the site of photosynthesis
What is the chloroplast?
Water that flows over the land and into rivers and streams after precipitation is called this.
What is runoff?
These thin, wispy clouds form high in the sky and are usually made of ice crystals.
What are cirrus clouds?
This law states that energy cannot be created or destroyed, only transformed.
What is the Law of Conservation of Energy?
These are the building blocks of DNA
What are nucleotides?
These are the two main types of cells—one with a nucleus and one without.
What are prokaryotic and eukaryotic?
This process occurs when plants release water vapor from their leaves into the atmosphere.
What is transpiration?
These tall, towering clouds can produce thunderstorms, lightning, and even tornadoes.
What are cumulonimbus clouds?
Food, batteries, and gasoline all contain this type of stored energy.
What is chemical energy?
What are chromosomes?
Produced by the mitochondria, this is the form of energy used by cells
What is ATP?
The direct transition of water from a solid state to a gaseous state without going through the liquid phase.
What is sublimation?
When you see cirrostratus clouds covering the sky, it usually means this kind of weather is coming.
What is rain or a storm?
A toaster changes electrical energy into this type of energy.
What is thermal energy?