Mass
Atoms in a solid are
packed very closely together
When do we use the Engineering Design Process?
When we have a problem to solve.
What do the planets Jupiter, Neptune and Saturn have in common?
They are all gaseous planets; also the outer planets.
Two girls are playing tug of war. Amelia is pulling at 10N, while Emme is pulling at 15N. What is the net force and which direction is the force traveling?
5N in Emme's direction.
An acquired trait is
Something that is learned after birth.
Freezing is a phase change from a _______ to a _______.
liquid; solid
What is the first step in the Engineering Process?
Identify the problem.
How long does it take the Earth to orbit the sun?
365.4 days
What causes a balanced force to speed up or change direction?
An unbalanced force.
A scientist found many fossils of ancient freshwater animals in a large meadow. Which is most likely true about the area in which these fossils were found?
This area used to be covered by water.
The greater the mass, the greater the _________ _________.
gravitational force
What is a test model called?
Prototype
The Milky Way is a _________________ __________ shaped galaxy.
Barred Spiral
What is an inherited trait?
a trait that is passed down from parents to offspring
A bear searching for food in trash cans is an __________ behavior.
learned/acquired
When two substances are mixed and a new substance is formed, what kind of change is happening?
chemical change
How many times did Thomas Edison fail before he was successful?
What kind of eclipse is when the moon moves into the earth's shadow?
Lunar eclipse
One giraffe has a neck that is a foot longer than the other giraffes that live nearby. How does having a longer neck give the giraffe an advantage that helps it survive?
If a woodpecker sharpens its beak on a rock to help it drill holes in trees, will its offspring inherit sharper beaks when they are born?
No, because it is not an inherited trait.
How can you make sugar dissolve faster in a glass of water?
Stir it
What are the steps that need to be repeated if the prototype fails?
Steps 2-4
What is the first phase of the moon?
New Moon
The force of Earth's gravity
Pulls things to the Earth's core.
What is the same temperature as the melting point?
The freezing point
This is the reaction of when bread gets turned into toast, changing it into something different
Chemical reaction
When a prototype is successful, what is the next step?
Communicate your results.
What does density mean?
Thick; solid
A ball is thrown in the air. The ball goes up, then changes direction and falls down. Why does the ball fall down?
Gravity is always pulling things toward its core.
What is an inherited trait?
A trait that was passed by the parents of the offspring.