Observing the Force of Gravity

How can gravity be measured?

How would the pull of gravity change on a planet of a different size?

Drop it:  Fight Gravity!

Drop a piece of flat paper and a crumpled piece of paper at the same time. 

Did gravity affect the objects in the same way?  Explain

Lessons in Motion

1. What directions do clouds move?
2. Introducing the Metric System!
3. Using tools to measure motion and speed.
4. Measure for the Treasure!
5. Move it?

Metric Measuring

Where would you find 1 Million Meters?  

Hint: look on the earth, or watch the video from the last blog.

From Small to 

LARGE!

Millimeter  mm

Centimeter  cm

Meter m  

Kilometer km

Write them like this:

Millimeter   30mm 34 mm

Centimeter   3 cm 3.4 cm

Meter m   1m   1.3m 1.33m

Kilometer km We'll leave this for another day...

   

What does a scientist use to measure?

How do people measure length?

What will we measure?

How will we talk about movement?

 Students will start exploring the ways motion can be observed and measured.  Many had requested seeing the "Cloud in the Classroom" lesson from last year.  This was a great opportunity to watch movement and begin our vocabulary.

Describing the movement of clouds.

 2HY strength of movement, straight, force, friction, motion, position, gravity and wind, diagonal, back and forth, in a circle, speed, up and down, crooked, distance, float, fast, quickly, pulled push throw, curve and turn, gentle,side to side, spinning twirling, twisting.

2H  motion, forces, position, friction, movement, predict where it will go, centimeter, acceleration, meter, curve, straight, around, turn, come together like a couple of animals, twist, spiral, swirly, flipping, bouncing, circling, curvy.

2B
Shooting, pushing pressure, connection, north, south, east, west, high, low, right, left, spiral, whirlpool, squiggly, zig-zag, yard, stable, balanced.

What did we find out about our right thumbprints?

Bar Graph 2012

What happens when scientists observe and compare?

How do Scientists observe and compare?

 Second graders forensic scientists will learn the proper use of a microscope.  This will prepare them for close up looks at all types of organisms as we investigate life cycles this year.

We will start by looking at our fingerprints as begin to answer the question,how are organisms alike and different?  Be prepared to have your own prints investigated at home!

Make a print of your right thumb.  Tape the print in the box.

My Right Thumbprint

Use a magnifier to observe the lines on the thumbprint.

Write what you observed with the magnifier.

Compare your right thumb to your classmates' fingerprints.    

Write what you observed as you compared different prints.    

Fingerprints and the FBI

Compare

The photo below shows the most common fingerprints and their names.  Compare your right thumbprint to these images.
Circle the type of print you think looks most like your right thumb.

Make another copy of your right thumb. 

Tape it onto to the class chart.

Predict

Will there be one type of print that is most common in the class?