A complete lesson plan by OTM. For Grade 5, Grade 6, Grade 7, Grade 8. This lesson plan is sold separately and is not included with any subscription or study pack.

A complete lesson plan by OTM. For Grade 1, Grade 2, Grade 3. This lesson plan is sold separately and is not included with any subscription or study pack.

A complete lesson plan by OTM. For Grade 4, Grade 5, Grade 6. This lesson plan is sold separately and is not included with any subscription or study pack.

A complete lesson plan by OTM. For Grade 1, Grade 2, Grade 3. This lesson plan is sold separately and is not included with any subscription or study pack.

In ancient Greece, some philosophers, most notably Heraclitus, believed that everything in the world was in a state of fluctuation. Others argued that there must be some permanence, otherwise it would not be possible to see anything as being real. The...

The simplest definition of matter is that it is anything that has weight or fills space. Matter is all the things we can see and feel in the world. Rocks, giraffes, water, and cars all consist of matter, whether they are living or non-living. Air is...

Is the universe matter dominated or energy dominated? The very early universe was "energy dominated" in the sense that only a small fraction of the energy of the universe at that time was in the form of the rest energy of matter and...

In science, matter is commonly defined as the substance of which physical objects are composed, not counting the contribution of various energy or force-fields, which are not usually considered to be matter per se (though they may contribute to the mass...

What choices do we, as citizens, have in the massive global economy? Can we still have a society that defends the public good, a society focused on promoting the well-being of the whole community? Such a satiety should recognize and respect private interests,...

As is typical at this time of year, Virginia's political landscape has become relatively quiet. But in the absence of big issues to debate, we can puzzle over smaller matters. State Sen. Benjamin J. Lambert III (D-Richmond) was shocked to learn recently that...

After dismounting your partner’s white stallion, Thundersnow, the two of you enjoy a candlelit meal of champagne and strawberries in the manicured organic garden next to the orphanage and motorcycle-repair shop he runs. Your crystal flute empty, he immediately gives you a massage, until he’s...

I grew up in a household that thought of itself as in perpetual transit, even when it wasn't. My bookish mother was sternly injuncted not to collect more volumes than could fit in a single lead-lined crate, so everything on the shelves was precious. There...

The following are notes about Matter.