Nature of Science
Why is it important to conduct multiple trials?
To ensure data is accurate and reliable
What is the only star in our solar system?
Give 2 causes of weathering.
Water, gravity, wind, ice, and plants
How would you find the volume of an irregularly shaped object?
Volume displacement.
_______ is at the beginning of every food chain.
The sun
Why is it important to only change one variable?
To ensure we know what variable is causing the change. If you change more than one, you don't know which caused the change in results.
One Earth revolution is equal to one _______. While as a rotation is equal to one _________.
year / day
What step is next in the water cycle:
precipitation > evaporation > ______________
condensation
Which of the following materials will not dissolve in water?
a. Salt
b. Baking Soda
c. Oil
d. Sugar
C. Oil
Plants are producers. They make their own food by using carbon dioxide, __________, and energy from the sun.
water
Scientists are curious about the natural world in which they live. This curiosity leads to questions they investigate. When a scientist completes an investigation, what most likely happens after the investigation?
A. A scientist will buy different materials.
B. A scientist will have even more questions.
C. A scientist will believe they have the correct answer.
D. A scientist will try to test two or more variables at the same time.
B
What does a galaxy consist of? (must get all 3)
gas, dust, and many stars
Inland cities have ________ temperatures in the winter and ________ temperatures in the summer.
cooler/ warmer
Lindsey shines a laser on an object. When she does, she notices that the light bends when it hits the object. What is she most likely witnessing?
A. The light is being absorbed by the object.
B. The light is being reflected by the object.
C. The light is being both reflected and absorbed.
D. The light is being refracted by the object.
D. The light is being refracted by the object.
What type of consumer eats both plants and animals?
Omnivores
A 5th grade class is investigating how walking on a wet tile floor may cause people to slip and fall more often than when the floor is dry. They will measure the distance a marble travels in the media hallway when the floor is wet and when it is dry.
What will make the class’s results more valid and reliable?
A. Conduct multiple trials using a different number of books each time.
B. Conduct multiple trials for the wet floor and then for the dry floor.
C. Conduct multiple trials using floors from different hallways.
D. Conduct multiple trials using different sizes of marbles
B
Give 3 differences of inner and outer planets
Inner planets- no rings, few/little moons, shorter revolutions, rocky surfaces, smaller diameter
Outer planets- rings, many moons, longer revolutions, made of gas, larger diameter
Eduardo lives in Florida near the Atlantic Ocean. Many times, he has watched precipitation fall in the form of rain into the ocean. Even though he observes water moving into the ocean, he notices that the level of water in the ocean does not seem to change. Which statement best explains why the water level in the ocean does not seem to change?
A. Water evaporates from the ocean's surface.
B. Some ocean water freezes and becomes glaciers.
C. Salt makes the ocean heavier so it takes up less space.
D. Water seeps into the ground and becomes groundwater.
A. Water evaporates from the ocean's surface.
Name two ways to speed up a chemical change.
Increase the temperature, shake/stir, or increasing the surface area (breaking up)
List the four stages of complete metamorphosis.
egg, larva, pupa, adult
Demian investigates with water and performs the following procedure:
1. Fill two bowls of the same size and shape with 200 mL of water.
2. Place one bowl in the sunlight and one bowl in the shade.
3. Record the amount of water in each bowl after 3 hours.
What testable question is Demian investigating?
A. Does the location of water affect the rate of evaporation?
B. Does the amount of water affect the rate of evaporation?
C. Does the size of the bowl affect the rate of evaporation?
D. Does the length of time affect the rate of evaporation?
A.
Julian and Ricardo are playing a Space guessing game. They are giving each other clues to name different objects in space. Julian gives Ricardo the following clues:
orbits a star
has mass
has an atmosphere
rotates on an axis
Which of the following objects is Julian most likely describing?
A planet
The water cycle has many changes throughout it. For the evaporation and condensation stages, list how the states of matter change for water. There are also many different forms of precipitation. List three of them.
Evaporation: Liquid to a gas
Condensation: Gas to a liquid
Precipitation: Rain, hail, sleet, or snow
Connor is taking guitar lessons. He notices that each of the strings are different sizes. What is true of the strings he observes.
A. The larger string will move slower and therefore has a lower pitch.
B. The larger string will move faster and therefore has a lower pitch.
C. The smaller string will move slower and therefor has a lower pitch.
D. The speed the string moves does not affect the pitch.
A. The larger string will move slower and therefore has a lower pitch.
List three inherited traits for each a plant and animal.
List two traits' animals learn/aquire from their environment.
Plant: leaf color, leaf shape, size, color of flower, type of plant
Animal: hair color, eye color, height, freckles, dimples
Learned: learning to read, learning to walk, playing an instrument, hair color and length.