domingo, 17 de abril de 2011

Vocabulary #2

reproduce: means to form offspring similar to the parents.

development: is all the changes that occur as a living thing grows.

consumer: are living things that eat, or consume, other living things.
producer: are living things that make, or produce, their own food.
cellular respiration: is the process by which food is broken down and energy is released.

adaptation: a trait that makes living things better able to survive.


cell membrane: gives the cell shape and holds the cytoplasm.

nucleus: is the cell part that controls most of the cell's activities.

nuclear membrane: is a structure that surrounds the nucleus and separates it from the rest of the cell.
nucleolus: is the cell parts that helps make ribosomes.
chromosomes: are cells parts withh information that determines what traits a living thing will have.

cytoplasm: jellylike material between the cell membrane and the nucleus that makes up most of the cell.

ribosomes: are cells parts where proteins are made.

mitochondria: are cell parts that produce energy from food that has been digested.

vacuole: is a liquid-filled space that stores food, water, and minerals.

centrioles: are cell parts that help with cell reproduction.

chloroplast: are cell parts that contain the green pigment, chlorophyll.

cell wall: is a thick outer covering outside the cell membrane.
diffusion: the movement of a substance.

osmosis: The movement of water.
tissue: is a group of similar cell that work together.
organ: is a group of tissues that work together.

organ system: a group of organisms that work together.

organism: is a living thing.



Vocabulary #1

biology: is the study of tliving and once-living things.


light microscope: light passes throgh the object being look at and then through two or more lenses.


stereomicroscope: is used for viewing large objects and things through which light cannot pass, such as insexts.
International System of Units: is a measuring system based on units.

meter: The SI unit of lenght.
volume: is the amount of space a substance ocupies.


kilogram: The SI unit of mass.
Celsius: scientists measure temperature.

scientific method: scientists use a series of steps to solve problems.
hypothesis: is a statement that can be tested.
experiment: testing a hypothesis.

variable: changes in a experiment.
control: comparing results.

data: are the recorded facts or measurement from an experiment.
theory: hypothesis that have been tested again and again.
technology: scientific discoveries to solve everyday problems.