DNA structure
Cells
Water cycle
Clouds
Energy
100

In DNA, adenine always pairs with this base.

What is thymine

100

This structure surrounds all cells and controls what enters and exits.

What is the cell membrane?

100

Rain, snow, sleet, and hail are all forms of this water cycle process.

What is precipitation?

100

These white, fluffy clouds usually indicate fair weather and look like cotton balls.

What are cumulus clouds?

100

Plants use this form of energy from the sun to make their own food

What is light or solar energy?

200

This scientist duo is credited with discovering the double-helix structure of DNA in 1953.

Who are Watson and Crick?

200

In cells with membrane bound organelles, this is where DNA is found.

What is the nucleus?

200

This process in the water cycle turns liquid water into water vapor.

What is evaporation?

200

These low level, uniformly white or gray clouds may appear as mist or fog.

What are stratus clouds?

200

This type of energy is associated with objects in motion.

What is kinetic energy?

300

The two strands of a double helix are __________ to one another

What is complementary?
300

This organelle is found only in plant cells and is the site of photosynthesis

What is the chloroplast?

300

Water that flows over the land and into rivers and streams after precipitation is called this.

What is runoff?

300

These thin, wispy clouds form high in the sky and are usually made of ice crystals.

What are cirrus clouds?

300

This law states that energy cannot be created or destroyed, only transformed.

What is the Law of Conservation of Energy?

400

These are the building blocks of DNA

What are nucleotides?

400

These are the two main types of cells—one with a nucleus and one without.

What are prokaryotic and eukaryotic?

400

This process occurs when plants release water vapor from their leaves into the atmosphere.

What is transpiration?

400

These tall, towering clouds can produce thunderstorms, lightning, and even tornadoes.

What are cumulonimbus clouds?

400

Food, batteries, and gasoline all contain this type of stored energy.

What is chemical energy?

500
In our cells, DNA is packaged into 46 of these units

What are chromosomes?

500

Produced by the mitochondria, this is the form of energy used by cells

What is ATP?

500

The direct transition of water from a solid state to a gaseous state without going through the liquid phase.

What is sublimation?

500

When you see cirrostratus clouds covering the sky, it usually means this kind of weather is coming.

What is rain or a storm?

500

A toaster changes electrical energy into this type of energy.

What is thermal energy?

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