Vocab
day
How many days in an Earth year?
an attempt to find out about something is called an ....
Name 1 reason we can't see the stars at night.
Clouds or light pollution
In what direction does gravity always pull people and objects?
to move in a regular path around something
orbit
The pull between Earth and other objects which acts even without touching is called ...
gravity
information that supports an answer to a question
evidence
Name 1 reason we can't see the stars during the day time
How long does it take Earth to spin around one time?
24 hours
Something we observe to be similar over and over again
pattern
the length of time it takes for Earth to orbit the sun once
year
Scientists need to collect data in a systemic way so the evidence can be _________.
Would Princeton, Maine have high or low light pollution?
low
For people on the side of Earth that faces the sun, it is ________.
daytime
to make a picture in your mind using information from different sources
visualize
a description of how something works or why something happens is called an ...
explanation
How should data be collected during an investigation?
carefully!
Would Boston, Mass have high or low light pollution?
high
For people on the side of Earth that faces the stars, it is ____________.
What's the difference between a rotation and a revolution?
Rotation refers to spinning in place (a day) and revolution refers to spinning around somthing (a year)
Explain why there are 365 1/4 days in an Earth year. Where does the 1/4 come from?
Every 4 years Earth experiences a leap year. Every 4 years there's an extra day on our calendar.
When you conduct an investigation, it is important ...
to plan what you are going to change and keep the same
Constellations look like they move across the sky throughout the night because ...
Earth is spinning.
Something we observe to be similar over and over again
pattern