ABEKA HOMESCHOOLING BOOKS GRADE 6

The discovery probability of long-period comets passing near the Sun is highest during their first passage and then declines, or fades, during subsequent return passages. Comet fading is largely attributed to devolatilization and fragmentation via thermal processing within 2 to 3 AU (astronomical unit) of the Sun (1 AU being the Earth-Sun distance). New numerical simulations by Dr. Nathan Kaib, an...

Cryovolcanoes (ice volcanoes) are similar to normal volcanoes but instead of being formed from molten rock, they are made by frozen liquids like ammonia and water. The Wright Mons region on Pluto: darker/lower albedo, redder patches exist primarily on north-facing slopes but there are also more subtle differences in albedo and redness across the region; the region labeled A represents a redder unit...Baby Halloween bundle 0-6m

Declining temperature has been thought to explain the abandonment of Norse settlements in southern Greenland in the early 15th century CE, although limited evidence is available from the inner settlement region itself. In a new study, scientists from the University of Massachusetts Amherst and elsewhere reconstructed the temperature and hydroclimate history from lake sediments at a site adjacent...

New research led by Australian Museum paleontologists shows that monotremes are the last survivors of a diverse set of fossil species that once roamed the southern continents. In particular, the authors investigated the oldest and smallest known monotreme Teinolophos trusleri — classifying it in a new mammalian family — as well as the largest egg laying mammal that ever lived: a gigantic...

New research published in the American Museum Novitates is the first to document biofluorescence in Arctic fishes. A juvenile variegated snailfish (Liparis gibbus) imaged under white light (A, B) and under fluorescent lighting (C, D) conditions. White light: (A) dorsal view; (B) ventral view. Fluorescent lighting: (C) dorsalview, showing both green and red fluorescence; (D) ventral view, showing...

The signature feature of black holes is that they are black — objects which fall into the hole can no longer be seen and can no longer influence the outside Universe. In classical general relativity, ‘no hair’ theorems severely restrict the properties of a black hole which can affect other objects. These are limited to its total mass, spin, and charge. Now, four theoretical physicists show...

Visceral fat is deposited deep inside the abdomen around internal organs and is strongly linked to cardiac and metabolic diseases. New research from Mayo Clinic shows that lack of sufficient sleep leads to a 9% increase in total abdominal fat area and an 11% increase in abdominal visceral fat. Sleep restriction combined with ad libitum food promotes excess energy intake without varying energy expenditure....MINI TAROT!! Supernatural Tarot Card Deck (78 cards)(pocket trav

Scientists from Monash University and elsewhere have sequenced and assembled the nuclear and mitochondrial genomes of the helmeted honeyeater (Lichenostomus melanops cassidix), an emblem of the Australian state of Victoria. Helena, the helmeted honeyeater (Lichenostomus melanops cassidix) whose genome was sequenced, at Yellingbo Nature Conservation Reserve, Victoria, Australia. Image credit: Nick...

Calcium silicate perovskite (CaSiO3) is arguably the most geochemically important phase in the Earth’s lower mantle, because it concentrates elements that are incompatible in the upper mantle. No one has ever successfully retrieved this high-pressure compound from the lower mantle before. This is because CaSiO3-perovskite is ‘unquenchable,’ meaning that it cannot retain its structure after...

Visceral fat is deposited deep inside the abdomen around internal organs and is strongly linked to cardiac and metabolic diseases. New research from Mayo Clinic shows that lack of sufficient sleep leads to a 9% increase in total abdominal fat area and an 11% increase in abdominal visceral fat. Sleep restriction combined with ad libitum food promotes excess energy intake without varying energy expenditure....Doraemon Cube Zippered Pouch