What does it mean to CLASSIFY things?
It means to PUT them in GROUPS (group them based on similarities).
About how many different kinds of plants are there?
There are about 400,000 different kinds of plants.
What did val Helmont discover in his experiment?
He discovered that plants use very little soil to grow. They get their energy elsewhere (from air, sun, and water).
How do ROOTS help plants?
They keep the plant in the ground and take in water and nutrients.
How do STEMS help plants?
They act like the backbone, keeping the plant standing up straight above ground, and they move water and nutrients around the plants.
How do LEAVES help plants?
That's where they make their food (photosynthesis), and where they absorb sunlight and carbon dioxide. (also: transpiration)
Plants make their own food. What's the process called?
It's called PHOTOSYNTHESIS.
What do plants need for PHOTOSYNTHESIS?
They need sunlight, air, water, and nutrients.
After photosynthesis, plants excrete waste, which they can reuse later. What's this process called?
It's called (cellular) RESPIRATION.
What is the product of photosynthesis?
ELABORATED SAP. (plant food in the form of sugar + ATP energy)
