domingo, 20 de marzo de 2011

Vocabulary N°2 "Features of Life and the Cell"

1. Reproduce: to form offspring similar to the parents.

2. Development: all the changes that occur as a living thing grows.


3. Consumers: living things that eat, or consume, other living things.


4. Producers: living things that make, or produce, their own food.


5. Cellular Respiration: the process by which food is broken down and energy is released.


6. Cell: the basic unit of a living thing.


7. Adaptation: a trait that makes a living thing betterable to survive.
 



8. Cell Membrane: the cell part that gives the cell shape and holds the cytoplasm.
9. Nucleus: the cell part that controls most of the cell´s activities. 
10. Nuclear Membrane: a structure that surrounds the nucleus and separates it from the rest of the cell.
11. Nucleolus: the cell part that help make ribosomes.
12. Chromosome: cell parts with information taht determines what traits a living thing will have.
13. Cytoplasm: the clear, jellylike material between the cell membrane and the nucleus that makes up most of the cell.
14. Ribosome: cell parts where proteins are made.
15. Mitochondria: cell parts that produce energy from food that has been digested.
16. Vacuole: a liquid-filled space that stores food, water, and minerals.
17. Centriole: cell parts that help with cell reproduction.
18. Chloroplast: cell parts that contain the green pigment, chlorophyll.
19. Cell Wall: the thick, outer covering outside the cell membrane.
20. Diffusion: the movement of a substance from where there is a large amount of it.
21. Osmosis: the movement of water across the cell membrane.
22. Tissue: a group of similar cells that work together to carry out a special job.
23. Organ: a group of tissues that work together to do a job.
24. Organ System: a group of organs that work together to do a certain job.
25. Organism: a living thing.

jueves, 10 de marzo de 2011

Vocabulary N°1 "The Study of Life"

1. Biology: the study of living and once-living things.

2. Light Microscope: light passes through the object been looked at and then through two or more lenses.

3. Stereomicroscope: used for viewing large objects and things through which light cannot pass.

4. International System of Units: is  a measuring system based on units of 10.

5. Meter: an SI unit of lenght.

6. Volume: is the amount of space a substance occupies.

7. Kilogram: an SI unit of mass.

8. Celsius: an SI unit of temperature.



9. Scientific Method: a series of steps used to solve problems.

10. Hypothesis: a statement that can be tested.
11. Experiment: testing a hypothesis using a series of steps with controlled conditions.
12. Variable: something that causes the changes observed in an experiment.
13. Control: a standard for comparing results.

14. Data: the recorded facts or measurements from an experiment.
15. Theory: a hypothesis that has been tested again and again by many scienists, with similar results each time.
16. Technology: the use of scientific discoveries to solve everyday problems.