7th grade science

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7th grade science by Mind Map: 7th grade science

1. Graphs

1.1. DRY

1.1.1. Dependent Responsive Y-axis (Up and down)

1.2. MIX

1.2.1. Manipulated Independent X-axis (side to side)

1.3. Lenses

1.3.1. L Label and list What is the title What is the independent variable with units What is the dependent variable with units What are the High and low points

1.3.2. E Equation As the IV________, the DV _________.

1.3.3. N Notice What do you observe about the graph

1.3.4. S Spectacular Predict an intermediate data point Hypothesis what will happen to the dependent variable if the IV increases

1.3.5. E Explain/Evaluate Is there info that is not assessed by the graph that would allow for a better understanding

1.3.6. S Summary Give 1 sentence summarizing the content you learned

2. Investigators

2.1. Claim

2.1.1. What you think

2.2. Evidence

2.2.1. Evidence to your claim

2.3. Reasoning

2.3.1. Explain why your evidence backs up your claim

3. Jacques Charles

3.1. French scientist

3.2. Made a science law

3.2.1. Charles law Volume of a gas increases with increasing temperature,if the pressure is the same. Volume of a gas decreases whith deacresing tempurature. This is because the more energy there is, the faster gas particles move Example Thermal contraction Decrease in volume as its temp decreases. Thermal expansion Increases in volume as the temp increases Heating The transfer of thermal energy from a region of higher temp to a region of low temp. Systems The materials or objects involved in a transfer of energy. This is a open system because energy is released into the environment. In a situation of a closed system, there is no exchange of energy with the environment ( In theory is impossible)

4. Robert Boyales

4.1. Made a science law

4.1.1. Boyales law Pressure and Volume When there is less space to move around, the particles that make up the gas collide with each other and the container. This is a increase in pressure. When there is more space to move around, the particles collide less frequently with each other and the container. It is a decrease in pressure This happens when you submerge deep into the ocean. The pressure increases, causing your ears to pop Pressure and Number of particles With an increase in particles there will be a increase in the number of particle collisions. That means pressure will increase because there will be less space between the particles When there is a decrease in particles, there will be a decrease in collisions, and less pressure as a result.

4.1.2. Types of relation ships Pressure/volume Increase the volume lowers the pressure Pressure/ number of particles Increase the number of particles increases the pressure Pressure/Temperature Increase the temperature increases the pressure

4.2. Video

4.3. British scientist

5. Phase change

5.1. Melting

5.1.1. Particles in a solid that begins to gain more energy until they can break away from other particles.

5.1.2. This is know as the melting point of a substance.

5.2. Vaporization

5.2.1. The change of state from a liquid into a gas.

5.2.2. As thermal energy is added to a liquid, the particles move faster until they overcome the forces holding them together.

5.2.3. The temp needed to reach this level is know as the boiling point

5.3. Evaporation

5.3.1. Evaporation is just vaporization is that occurs only at the surface of a liquid.

5.3.2. An EX is that water in a puddle dries up slowly because it evaporates from the sun.

5.4. Freezing

5.4.1. Opposite of melting is freezing (liquid to solid)

5.4.2. The freezing point in the temp at which liquids change into a solid.

5.4.3. Here we remove thermal energy slowing down the the particles.

5.5. Condensation

5.5.1. Remove enough energy from a gas and it will condense into a liquid.

5.5.2. Particles are slowed down, until eventually their attractive forces keep them together.

6. Sci method

6.1. Observation

6.1.1. Quantitative observation Numbers and measurements

6.1.2. Qualitative observation Colors

6.2. Question

6.2.1. Ask yourself something that can answered during experiment

6.3. Hypothesis

6.3.1. Predict what will happen

6.4. Test prediction

6.4.1. Experiment

6.5. iterative process

6.5.1. Add on to a prototype

6.6. Peer review

6.6.1. Seeing if you have the same results

7. Lab Safety standards

7.1. Hair

7.1.1. Always tie up your hair in a lab because it can catch on fire, knock something over and get contaminate a experiment

7.2. Clothing

7.2.1. When wearing clothes in the lab make sure they cover up as much skin as possible. You can spill something bad on your skin You can drop glass on your feet and cut them up when not wearing proper shoes Always where protective glasses when in the lab because you can get something in your eye. Regular glasses don't work

7.3. Hazard signs

7.3.1. Green means health

7.3.2. Red means flammable

7.3.3. yellow means chemical reaction

7.3.4. 0-4 is how much it will react 0 little reaction and 4 Giant reaction

7.4. MSDS

7.4.1. Before google this had every chemical written down in it and about it

7.5. Pipetting

7.5.1. LIke a straw that moves certain liquid around and hom much Don't use your mouth or you can get sick and die

8. Matter

8.1. Solid

8.1.1. Matter with definite shape and volume

8.1.2. Particles are close together and vibrate in place

8.2. Liquid

8.2.1. Definite volume but not a definite shape.

8.2.2. They can flow between containers and difficult to compress.

8.2.3. Move around and collide withe each other

8.2.4. Move more then a solid

8.3. Gas

8.3.1. State of matter without definite shape or definite volume.

8.3.2. Can change its volume and shape because it’s easy to compress.

8.3.3. Is a fluid

8.3.4. Particles are spaced and move around randomly

8.3.5. move very fast

8.4. matter pic

9. Kinetic energy

9.1. Temperature

9.1.1. Speed of kinetic energy

9.2. Thermomoter

9.2.1. measure temperature (kinetic energy)

9.3. Kelvin scale

9.3.1. Developed to predict what temp particles would stop all motion

9.4. Potential energy

9.4.1. Stored kinetic energy

9.5. Thermal energy

9.5.1. Thermal energy is like where heat is in the atmosphere

10. Periodic

10.1. Periodic table

10.1.1. Carbon=C

10.1.2. Gold=Au

10.1.3. Potassium=K

10.1.4. chlorine=Cl

10.1.5. Sodium=Na

10.1.6. Sulfur=S

10.1.7. Oxygen=O

10.1.8. Silver=Ag

10.1.9. Cobalt=Co

10.1.10. Nickle=Ni

10.2. Atoms

10.2.1. Substances Substances are what the atoms make up

10.2.2. Elements Each atom is a different element like how 2o and 1 H =water a.k.a. H2o

10.2.3. Compounds Compounds are when 2 different elements combine

10.2.4. Atoms make up the substances called molecules

10.3. Chemical formula

10.3.1. A chemical formula is basically making a compound H+2o=H2o=water

10.4. Periodic image