1. SCIENCE DICTIONARY Randall Block C Grade 11

2. Qualitative Information  Definition :The information that is connected with how good something is.  Describe the room temperature by using qualitative information. The temperature is melting.  Definition :The information that is connected with how good something is.  Describe the room temperature by using qualitative information. The temperature is melting.

3. Quantitative Information  Definition: The information that is connected with amount and number of something.  Describe the room temperature by using quantitative information. The temperature is about 35 degree.  Definition: The information that is connected with amount and number of something.  Describe the room temperature by using quantitative information. The temperature is about 35 degree.

4. Observation  Definition: The action of watching something carefully and get some information.  Most information was collected by direct observation of the human’s behavior.  Definition: The action of watching something carefully and get some information.  Most information was collected by direct observation of the human’s behavior.

5. Interpretation  Definition: A way to understand and explain something.  Everyone is able to put their own interpretation on the theory of chemistry.  Definition: A way to understand and explain something.  Everyone is able to put their own interpretation on the theory of chemistry.

6. Description  Definition: A piece of writing or speech use descriptive language to say what something is like  Mr Usman issued a description of the experiment.  Definition: A piece of writing or speech use descriptive language to say what something is like  Mr Usman issued a description of the experiment.

7. Data  Definition: A set of number that is tested or examined after experiment.  Every time we finish a experiment, we will work on interpretation of the data.  Definition: A set of number that is tested or examined after experiment.  Every time we finish a experiment, we will work on interpretation of the data.

8. Experiment  Definition: The scientific test that is done in order to study what happen to study what happens and to gain new knowledge.  Evaporation separation can separate salt from water, proved by experiment.  Definition: The scientific test that is done in order to study what happen to study what happens and to gain new knowledge.  Evaporation separation can separate salt from water, proved by experiment.

9. Hypothesis  Definition: The idea or explanation of something that is under demonstration. It should have few known facts.  The thing we should done before the experiment is to make a hypothesis. We can compare the result with hypothesis and learn from it.  Definition: The idea or explanation of something that is under demonstration. It should have few known facts.  The thing we should done before the experiment is to make a hypothesis. We can compare the result with hypothesis and learn from it.

10. Theory  Definition: A set of formal ideas need to explain why.  According to the theory of relativity, nothing can travel faster than light.  Definition: A set of formal ideas need to explain why.  According to the theory of relativity, nothing can travel faster than light.

11. Law  Definition: It should be a official idea. Everyone in this world must obey  The law of gravity was invented by Newton.  Definition: It should be a official idea. Everyone in this world must obey  The law of gravity was invented by Newton.

12. Matter  Definition: Generally, everything in the world consists of MATTER. It is a physical substance. Different matter have their own properties.  Definition: Generally, everything in the world consists of MATTER. It is a physical substance. Different matter have their own properties.

13. Physical property  Definition: Properties that can be observed by changing the chemical status  Intensive and extensive is a kind of physical property. They both have not create new substance.  Definition: Properties that can be observed by changing the chemical status  Intensive and extensive is a kind of physical property. They both have not create new substance.

14. Chemical property  Definition: Properties that can be observed with creating new substance.  Burning is a chemical property, it can produce new substance.  Definition: Properties that can be observed with creating new substance.  Burning is a chemical property, it can produce new substance.

15. Extensive Property  Definition: This physical property can be affected by mass or size change.  Extensive property is a property that can be affected by mass and number change.  Definition: This physical property can be affected by mass or size change.  Extensive property is a property that can be affected by mass and number change.

16. Intensive Property  Definition: This physical property does not depend on things’ size or mass.  Intensive property is a property that can not be affected by mass and number change.  Definition: This physical property does not depend on things’ size or mass.  Intensive property is a property that can not be affected by mass and number change.

17. Solids  Definition: A kind of property that can’t conform with the shape of the container. The volume doesn’t change.  It was so cold that the stream had frozen solid.  Definition: A kind of property that can’t conform with the shape of the container. The volume doesn’t change.  It was so cold that the stream had frozen solid.

18. Liquids  Definition: A kind of property that conform with the shape of the container.  The transition from liquid to vapour is a physical property.  Definition: A kind of property that conform with the shape of the container.  The transition from liquid to vapour is a physical property.

19. Gases  Definition: Substance that is not liquid or solid.  Air is a mixture of gases. It has nitrogen, oxygen, carbon dioxide and noble gases.  Definition: Substance that is not liquid or solid.  Air is a mixture of gases. It has nitrogen, oxygen, carbon dioxide and noble gases.

20. Hardness  Definition: Substance that can’t be hammered of folded.  The flexibility should be bad if the object have hardness.  Definition: Substance that can’t be hammered of folded.  The flexibility should be bad if the object have hardness.

21. Malleability  Definition: Metal that can be hit or pressed into different shapes without breaking it.  Malleability is utilized widely in Golden jewelry.  Definition: Metal that can be hit or pressed into different shapes without breaking it.  Malleability is utilized widely in Golden jewelry.

22. Ductility  Definition: Metal that can be made into wire  Enough ductility make metal have ability to become different shapes.  Definition: Metal that can be made into wire  Enough ductility make metal have ability to become different shapes.

23. Lustre  Definition: An object has an ability to reflect on the surface.  Lustre is a vital property that make jewelry shining.  Definition: An object has an ability to reflect on the surface.  Lustre is a vital property that make jewelry shining.

24. Viscosity  Definition: It is an ability to stick on any surface.  The viscosity can be affected by temperature change.  Definition: It is an ability to stick on any surface.  The viscosity can be affected by temperature change.

25. Diffusion  Definition: the property of being spread.  Sugar dissolve in water is a process of diffusion.  Definition: the property of being spread.  Sugar dissolve in water is a process of diffusion.

26. Vapour  Definition: It is a kind of gas that has many small drops of liquid in the air. EX: steam  The water heat to its boiling point, it becomes vapour.  Definition: It is a kind of gas that has many small drops of liquid in the air. EX: steam  The water heat to its boiling point, it becomes vapour.

27. Element  Definition: A chemical substance that is consist of only one type of atoms.  Au, Ag and Hg are element and they are members in the periodic table.  Definition: A chemical substance that is consist of only one type of atoms.  Au, Ag and Hg are element and they are members in the periodic table.

28. Atom  Definition: In a chemical reaction, it is the smallest part of a chemical element.  Substances are the combination of atoms.  Definition: In a chemical reaction, it is the smallest part of a chemical element.  Substances are the combination of atoms.

29. Molecule  Definition: The simplest structural unit of an element or compound.  Molecule can be the result of the combination of atoms.  Definition: The simplest structural unit of an element or compound.  Molecule can be the result of the combination of atoms.

30. Ion  Definition: Atoms and molecules with positive or negative electric charge.  Ion charge shows us atom or molecule gaining or losing atoms.  Definition: Atoms and molecules with positive or negative electric charge.  Ion charge shows us atom or molecule gaining or losing atoms.

31. Particle  Definition: It is small pieces of matter. EX: proton  Dust is made of many small particle.  Definition: It is small pieces of matter. EX: proton  Dust is made of many small particle.

32. Homogenous substance  Definition: The homogenous substance is a mixture that has same ratio of thing throughout the entire mixture.  In homogenous mixture, Substances has the same peroperty.  Definition: The homogenous substance is a mixture that has same ratio of thing throughout the entire mixture.  In homogenous mixture, Substances has the same peroperty.

33. Heterogenous substance  Definition: The homogenous substance is a mixture that has different ratio of thing throughout the entire mixture. One cup of tea has different tastes, because of many things inside.  Heterogenous substance has more than one phase.  Definition: The homogenous substance is a mixture that has different ratio of thing throughout the entire mixture. One cup of tea has different tastes, because of many things inside.  Heterogenous substance has more than one phase.

34. Pure substance  Definition: Pure substance is a thing has only one substance and has not been mixed.  Pure substance does not mean it looks clean.  Definition: Pure substance is a thing has only one substance and has not been mixed.  Pure substance does not mean it looks clean.

35. Mixture  Definition: Mixture is made of different substance. However, it is not a chemical way.  It is a common knowledge that our drinks are mixture.  Definition: Mixture is made of different substance. However, it is not a chemical way.  It is a common knowledge that our drinks are mixture.

36. Mechanical Mixture  A mixture whose components can be separated by mechanical means.  Mechanical mixture can not be separate by hand separation.  A mixture whose components can be separated by mechanical means.  Mechanical mixture can not be separate by hand separation.

37. Solution  Definition: It is a mixture that mixed with solid and liquid.  Solid dissolved in water, it is solution.  Definition: It is a mixture that mixed with solid and liquid.  Solid dissolved in water, it is solution.

38. Solvent  Definition: Liquid that can dissolve solid.  Liquid is solvent, in the mixture.  Definition: Liquid that can dissolve solid.  Liquid is solvent, in the mixture.

39. Solute  Definition: Solid dissolved in the liquid.  Solid is solute, in the mixture.  Definition: Solid dissolved in the liquid.  Solid is solute, in the mixture.

40. Compound  Definition: A substance formed by a chemical reaction of two or more elements.  Compound is the combination of elements.  Definition: A substance formed by a chemical reaction of two or more elements.  Compound is the combination of elements.

41. Homogenous mixture  Definition: The homogenous substance is a mixture that has same ratio of thing throughout the entire mixture.  In homogenous mixture, any substance has the same property.  Definition: The homogenous substance is a mixture that has same ratio of thing throughout the entire mixture.  In homogenous mixture, any substance has the same property.

42. Heterogenous mixture  Definition: The homogenous substance is a mixture that has different ratio of thing throughout the entire mixture. One cup of tea has different tastes, because of many things inside.  In homogenous mixture, any substance has the different property.  Definition: The homogenous substance is a mixture that has different ratio of thing throughout the entire mixture. One cup of tea has different tastes, because of many things inside.  In homogenous mixture, any substance has the different property.

43. Filtration  Filtration: It is a separation that can separate solid from liquid. Only the fluid can pass the filter paper.  The filtrate is not drinkable after the filtration.  Filtration: It is a separation that can separate solid from liquid. Only the fluid can pass the filter paper.  The filtrate is not drinkable after the filtration.

44. Filtrate  Definition: The liquid that has passed through a Filter.  Filtrate is not pure after Filtration.  Definition: The liquid that has passed through a Filter.  Filtrate is not pure after Filtration.

45. Residue  Definition: The small amount of solid that remain on filter paper.  Residue are bigger particle that can’t pass through filter paper.  Definition: The small amount of solid that remain on filter paper.  Residue are bigger particle that can’t pass through filter paper.

46. Distillation  Definition: It is a process that separating liquid mixture by “selective evaporation”.  Distillation separate different substance by using their boiling point.  Definition: It is a process that separating liquid mixture by “selective evaporation”.  Distillation separate different substance by using their boiling point.

47. Solvent Extraction  Definition: Solvent extraction is a method for separating a substance by solvent. It depends on the variations in dissolvabilities of compound.  During the experiment of solvent extraction, solid laid at the bottom of beaker.  Definition: Solvent extraction is a method for separating a substance by solvent. It depends on the variations in dissolvabilities of compound.  During the experiment of solvent extraction, solid laid at the bottom of beaker.

48. Recrystallization  Definition: It is a technique that can purify chemicals.  Recrystallization can purify chemicals by heating up and dissolve both product and impurities.  Definition: It is a technique that can purify chemicals.  Recrystallization can purify chemicals by heating up and dissolve both product and impurities.

49. Gravity separation  Definition: Gravity separation is an industrial method to separate components.  There are 3 layers in the solution after the Gravity separation.  Definition: Gravity separation is an industrial method to separate components.  There are 3 layers in the solution after the Gravity separation.

50. Chromatography  Definition: Chromatography is a very accurate method to separate ink and paper. The color will creep across the paper.  It was amazing that ink went up from one side to other in chromatography.  Definition: Chromatography is a very accurate method to separate ink and paper. The color will creep across the paper.  It was amazing that ink went up from one side to other in chromatography.

51. Chemical Change  Definition: Chemical change occurs at two substance combine together and creating new substance.  Food’s oxygenation is chemical change.  Definition: Chemical change occurs at two substance combine together and creating new substance.  Food’s oxygenation is chemical change.

52. Physical change  Definition: Physical change changes the form of chemical substance, but not create new substance.  Physical change occurs when ice become water.  Definition: Physical change changes the form of chemical substance, but not create new substance.  Physical change occurs when ice become water.

53. Kinetic energy  Definition: It is an energy produced by movement.  Kinetic energy exit in everywhere.  Definition: It is an energy produced by movement.  Kinetic energy exit in everywhere.

54. Rotational energy  Definition: Rotational energy is a kinetic energy due to rotation of an object.  Rotational energy’s movement usually goes spin.  Definition: Rotational energy is a kinetic energy due to rotation of an object.  Rotational energy’s movement usually goes spin.

55. Vibrational energy  Definition: Vibrational energy is a kinetic energy due to Vibration of an object.  The bonds usually stretch out and draw back in Vibrational energy.  Definition: Vibrational energy is a kinetic energy due to Vibration of an object.  The bonds usually stretch out and draw back in Vibrational energy.

56. Translational energy Definition: Translational energy is a kinetic energy due to Translation of an object. Translational energy occurs fierce movement. Definition: Translational energy is a kinetic energy due to Translation of an object. Translational energy occurs fierce movement.