Methane detected on another planet

// have detected the presence of methane and water in the atmosphere of a planet 64 light years away. Before you practice your Vulcan peace signs, life is not possible as this planet sports a temperature of 900 degrees Celsius. Read the news article here.


Find the pale blue dot and Earth Hour


Can you find the earth in this 1990 photo, The Pale Blue Dot, taken by Voyager 1 at a distance of 6.4 billion kilometers away?

“Look again at that dot. That’s here. That’s home, That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every ‘superstar,’ every ‘supreme leader,’ every saint and sinner in the history of our species lived there-on a mote of dust suspended in a sunbeam. […] There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we’ve ever known.”~ Carl Sagan, Pale Blue Dot

Celebrate our pale blue dot by turning off all lighting fixtures and appliances (yes, even the idiot box and your laptop) for ONE hour on March 29 from 8-9 PM. Take this opportunity to chat with your loved ones while gazing at the stars. Read more here.

Requirements for Clearance in Biology – 2

(Clearance Period: 24-29 March 2008)

1) Dissect a frog and identify its parts.

2) Clean the area assigned to your section (see table below for more details) and note down any cabinets, tables, sinks, etc. in need of repair. Bring your own cleaning materials. Schedule of cleaning is on Monday, March 24th.

3) Claim your notebooks and group lab boxes. You may choose to donate the materials in your lab boxes to Ms. Dela Cruz, our lab technician.

4) Submit your EOQ Reflections if you haven’t yet (on pad paper for Ms. Docto’s classes, as a comment on the blogsite for Ms. Crisologo’s classes).

5) Obtain Ms. Dela Cruz’s signature (return borrowed lab materials/replace if lost).

6) Submit an ID Picture for the Student Data Sheet (for Ms. Docto’s classes).

7) Claim the Prizes for Junk Art and 50% of the proceeds (for classes that participated during YMSAT week only).



Area Assigned

Schedule for clean-up on Mar 24th (M)


cabinets II, back area

9 – 10


table 4 + chairs, cabinets I

10 – 11


table 5 + chairs, floor

11 – 12


table 6 + chairs, sink 5

1 – 2


table 3 + chairs, sink 4

10 – 11


table 2 + chairs, sink 3



table 1 + chairs, sink 2



sink 1, teacher’s table, blackboard


Have a blessed holy week, everyone!

Pointers for the 4th Periodic Exam

4th Periodic Exam Coverage

Muscular System (30%)

  • Structure and functions of muscles
  • Origin and evolution of the muscular system
  • Types of muscles
  • Contraction of skeletal muscles and the sliding filament theory
  • Fast and slow twitch muscles

Nervous System (35%)

  • Structure and functions of neurons
  • Reflex arcs
  • Action potentials
  • Neurotransmitters
  • Invertebrate nervous systems
  • Trends in the development of the vertebrate nervous system
  • Parts of the vertebrate brain
  • Divisions of the peripheral nervous system

Plant Hormones and the Endocrine System (25%)

  • Functions of plant hormones
  • Relationships between the endocrine and nervous system
  • Action of hormones on target cells
  • Invertebrate hormones
  • Vertebrate hormones
  • Feedback mechanisms

Reproductive System (10%)

  • Sexual and asexual reproduction
  • Fertilization
  • Vertebrate reproductive systems
  • Human female reproductive cycle
    • View a flash file here that will test your understanding

I will be online from 5 to sawa. Add me on ym for online consultation. 😉

You can also view the PBS feature: Life’s Greatest Miracle (scroll down) on the website or here.