PACKAGE WITH VERIFIED SOLUTIONS
⩥ A convex mirror ... light waves,
A convex lens ... light waves. Answer: Diverges
Converges
⩥ The state of matter occurring at lower temperatures is the ... state
Answer: Solid
⩥ What is the difference bw physical change and chemical change?
Answer: A physical change may alter the form, size or shape of matter; a
chemical change alters its molecules.
⩥ Put these in order to describe how blood flows from the heart to the
body: body, left atrium, right atrium, right ventricle, left ventricles, lungs
Answer: Right atrium, right ventricle, lungs, left atrium, left ventricle,
body
⩥ An acid gives up _____ charged hydrogen ions when dissolved in
water. Answer: positively
⩥ When genetic signals in a cell fail to tell it to stop reproducing, the
result may be Answer: cancer
,⩥ A type of matter is classified as an element when _____ Answer: It
cannot be separated into different types of matter by ordinary chemical
methods
⩥ The speed of light in a vacuum is approximately _____ meters per
second Answer: 300 million
⩥ What is inertia? Answer: The tendency of an object to resist a change
in motion
⩥ What is a vector quantity? Answer: a quantity defined by both
magnitude and direction
⩥ What formula is used to calculate velocity Answer: v = d/t, where v =
velocity (a vector quantity), d = displacement (a vector quantity), and t =
time
⩥ Which two bodily functions are enhanced by calcium? Answer: bone
growth, muscle function
⩥ The Moon affects which activity on Earth? Answer: tides
, ⩥ The asteroid belt closest to the Earth lies between which two planets?
Answer: Mars and Jupiter
⩥ Define biosphere Answer: The biosphere consists of the layers of
Earth (crust, surface, atmosphere) where life naturally occurs.
⩥ Why are the four planets closest to the sun called the terrestrial planets
Answer: The composition of these planets is similar to that of Earth.
⩥ A stationary front produces .. weather Answer: cloudy and wet
⩥ The Earth is approximately _____ years old. Answer: 4.6 billion
⩥ What are the five kingdoms of living things? Answer: Monera
(sometimes split into Bacteria and Archaea), Protista, Fungi, Plantae,
Animalia
⩥ Put these classifications in order from broadest to narrowest: class,
domain, family, genus, kingdom, species, order, phylum Answer:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
⩥ Define biome Answer: A biome is a major life zone of interrelated
species bound together by a similar climate and similar plant and animal
life.