STANDARDS OF THE WEEKLY LESSON 3.1.10. C. Apply patterns as repeated processes or recurring elements in science and technology. D. Apply scale as a way of relating concepts and ideas to one another by some measure. E. Describe patterns of change in nature, physical and man made systems.

3.2.10. A. Apply knowledge and understanding about the nature of scientific and technological knowledge. B. Apply process knowledge and organize scientific and technological

phenomena in varied ways. C. Apply the elements of scientific inquiry to solve problems.

3.4.10. C. Distinguish among the principles of force and motion.

3.7.10. A Identify and safely use a variety of tools, basic machines, materials and techniques to solve problems and answer questions. B. Apply appropriate instruments and apparatus to examine a variety of objects and processes.

Sample FNM word wall (graphic organizer)

Density of cork is less dense and rock is more dense than density of water which equals 1 g/mL or 1 cm3

A barometer measures air pressure. Memory strategy, weight lifters lift a bar of weights.

Milk is a colloid, it looks homogeneous, but is heterogeneous. Milk, does it do a body good?

Refer to last slide for graphic organizer example. Put into voc section.

Verify in voc. section and in graphic organizer

A substance like a gas or liquid that flows and takes the shape of the container

Unit for pressure

= force/area

Greek mathematician and Forde: stated the upward force keeping an object floating is equal to the weight of the fluid the object displaces

Pressure caused by weight of atmosphere

5 Characteristics of fluidsFlowTake shape of containerParticles slide past each otherExert pressure

6 In order for the balloon to blow up the pressure insideThe balloon must be greater than the pressure the airOutside the balloon exerts on the balloon.

7 Formula P = f / (formula for area or given area)Plug P = 150,000 N / 1.5 cm2

Solve P = 100,000 N / m2 Solve in units P = 100,000 Pa

Air PPressureAbove water

Water PPressureAbove water plus pressure below water

• Pulled To earth by gravity

• Exert P• Container

shape

8

9 Gravity is the weakest of the 4 forces (strong, electromagnetic, weak, and gravity. The moon has 1/6 the gravity of earth and no atmosphere or water so there would be no air or water pressure on the moon.

ElevationWATER P Depth in

waterDECREASES

Air P

10 AND 11

12 Formula P = f / (formula for area or given area) WHEN YOU INHALE AND INCREASE THEAREA IN THE LUNGS PER THE EQUATION FOR PRESSURE YOU DECREASE THE PRESSURE TOLOWER THAN THE PRESSURE OUTSIDE THE LUNGS. FULL LUNGS HAVE AIR PRESSURE GREATER INSIDE THE LUNG THAN OUTSIDETHE LUNG SO UPON EXHALING THE AIRFLOWS FROM GREATER PRESSURE TO LOWER PRESSURE.

13 AIR AND WATER ALWAYS MOVE FROM GREATER PRESSURE TO LESSER PRESSURETHE WHALE EXHALED SO THE WHALEHAD GREATER PRESSURE IN THE BODY SINCE THE WATER MOVED OUT OF THE WHALEINTO THE AIR AS WATER VAPOR.14 HIGHER PRSSURE IS OUTSIDE

THE TORNADO AND INSIDETHE TORNADO IS LOWER PRESSUREDIFFERENCES IN PRESSURES MAKE WINDGREATER DIFFERENCES MAKE STRONGER WINDSTEMPERATURE CHANGES CAUSE PRESSURE DIFFERENCES.

15 THINK ABOUT IT: A COIN NEVERFLOATS. WHY? A COIN ISN’T VERY BIGWE KNOW A COIN HAS A DENSITY OF GREATER THAN 1 g/mL because it sinks in theDeepest of the oceans, (Mariana Trench in the Pacific Ocean), but why?As the coin is placed on top of the ocean water, the ability of the coin to displace waterBeneath the coin fast enough to stay afloat isn’t possible so the coin sinks. The force theCoin cannot achieve is a buoyant force great enough to displace water fast enough to Keep the coin floating.

16 Weight = buoyant F

Weight = buoyant FObject D = fluid D

Weight = buoyant FObject D < fluid D

floats Floats Suspended under water

Floats Suspended above water only partly submerged

18 D = m / v the volume is the denominatorSo to solve for v = m/D if D decreases While m stays the same, then v will increase