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- 1. Multiple Choice
In the human body, blood carries oxygen to the organs. Which of the following pumps blood throughout the body?
heart
kidneys
liver
lungs
- 2. Multiple Choice
Stars are objects in space that produce their own heat and light. Where would the greatest number of stars be found?
in a galaxy
in our solar system
in an asteroid belt
in a meteor shower
- 3. Multiple Choice
Denise wants to know which time of day is the warmest. She creates a chart to record the time and temperature at various times over several days. Which of the following BEST describes why Denise should keep detailed notes from her experiment?
to prevent others from doing the same investigation
to prevent others from making mistakes when doing the investigation
to allow someone to practicee note-taking skills when doing science investigations
to all someone to do the same investigation and check accuracy results
- 4. Multiple Choice
Daniella measured 400 milliliters (mL) of water using a beaker. She then heated the water until it boiled. She poured the boiling water back into the beaker and saw that there was less water than she had before. What property changed after the water was boiled?
color
shape
texture
volume
- 5. Multiple Choice
Melanie looks at the sky at night and can see Venus. She knows that Neptune is much larger then Venus, yet Neptune cannot be seen from Earth without a telescope. Which of the following explains why Neptune cannot be seen without a telescope?
it is surrounded by moons
it has a rough surface
it is a gaseous planet
it is far from Earth
- 6. Multiple Choice
The sun provides Earth with two forms of energy. What are the two forms of energy?
light & heat
sound & motion
electricity & light
magnetism & friction
- 7. Multiple Choice
Astronomers have developed a scale to make it easier to compare the brightness of different stars. Flavia is comparing two stars. Which of the following is the most likely reason for why one star appears brighter than the other?
they are made of differnt gases
they release different amounts of light
they are part of galaxies that are expanding
they move different distances as they revolve
- 8. Multiple Choice
Abigail uses a rope to lower a bucket in order to get water from a well near her house. Which force allows the bucket to be lowered?
electrical
friction
gravity
magnetism
- 9. Multiple Choice
In which organ does digestion mostly occur?
stomach
small intestinie
large intestine
liver
- 10. Multiple Choice
Lorena is going to dissolve a teaspoon of sugar in a cup of hot tea. What could Lorena do to dissolve the sugar more quickly?
Add ice to the cup
Stir the tea vigorouly
Add more sugar to the tea
Put the tea and sugar in a larger
- 11. Multiple Choice
Astronomers discover a new object in the night sky. Using high-powered telescopes, they find it is a bumpy, round, rocky object that is smaller than the planet Mercury. It orbits the Sun between Mars and Jupiter. Which of the following is the object most likely to be?
a comet
an asteroid
a small star
a new moon
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