A teacher places four small cubes on a table in front of a science class. Each cube is the same size and is painted the same color. However, each is made of a different material. What tool could a student use to find the cube made of iron?
A magnet.
Water moves directly from a lake to the air by which of the following processes? A. evaporation B. condensation C. precipitation D. sedimentation
A. evaporation
The Earth revolves around this object?
the SUN
Look at the picture of the island. Which process most likely caused the island to change over time?
A. earthquakes over many days B. hurricanes over several months C. rain and flooding over several years D. weathering and erosion over millions of years
D. weathering and erosion over millions of years. The island was changed by the slow processes of weathering and erosion. A and B both describe fast processes. While C does take several years, D is the best answer
At the beginning of a science class, the teacher opened a small sealed jar and placed it on a table. The contents of the jar spread throughout the room during class.
Which of the following did the jar most likely contain?
A. cloth fibers B. oxygen gas
C. saltwater D. snowflakes
B. oxygen gas - Gases have no definite volume and fill up the space that they are given.
Solids have a definite volume and shape
Liquids have a definite volume and they take the shape of their container, filling it from bottom.
What causes day and night on Earth?
A) Earth's rotation B) Earth's revolution around Sun C) Earth's tilt D) Sun's rotation
A) Earth's ROTATION
A circuit needs to be ______________________ for energy to flow.
A) open B) closed C) broken D) flexible
B) CLOSED
When a student blows across a bottle, a sound is made. What causes that sound? A. Air vibrating inside the bottle B. Warm air heating the inside of the bottle C. Cool air moving away from the bottle D. Warm air mixing with cold air inside the bottle.
A. Air vibrating inside the bottle Sound is caused by vibrations in a medium (air, water, etc.)
The process that occurs when water vapor in the air forms droplets on the side of a glass of ice water or a cloud in the sky? A. evaporation B. condensation C. precipitation D. sedimentation
B. CONDENSATION
A student took pictures of the Moon on different days. Which set of pictures did the student take on Sunday, Wednesday, and Saturday of the same week?
The sandpiper bird migrates from Canada to South America every winter and returns to Canada in the spring. Which best explains why the sandpiper migrates? A) The sandpiper needs to sleep more in winter; B) There is more food available in South America during the winter; C) There is less food available in South America during the winter; D) There is more rain in South America during the winter.
B. There is more food available in South America during the winter.
A student glued two pieces of wood together. The student needs to hold the two pieces of wood together tightly until the glue is fully dry the next day. Which of the following tools is best for holding the two pieces of wood together until the glue is dry?
C. clamp
Matter with tightly packed particles and a definite shape is?
A) gas B) liquid C) solid d) water
Three bar magnets are placed inside a plastic tube. Which of the following pictures best shows how the three bar magnets will move after being placed inside the tube?
C. Magnets with the same poles repel. Magnets with opposite poles attract.
Clouds and precipitation moved across Massachusetts. The temperature changed from 41 degrees to 28 degrees. What happened to the precipitation?
It changed from rain to sleet
Jupiter is the largest planet in the solar system. It rotates on its axis once every 10 hours. What time period on Earth would be 10 hours long if the Earth rotated on its axis once every 10 hours?
A day. A year is how long it takes the Earth to revolve around the sun. A day is how long it takes the Earth to rotate on its axis.
A small laundry room has several shelves above the washing machine. These shelves are an example of
A. making the wall stronger.
B. using storage space efficiently.
C. using a machine for more than one purpose.
D. solving the need for shelter in a creative way.
B. using storage space efficiently
Every year, sea turtles migrate 2000km to reproduce. This migration is an example of-- A. a learned behavior B. an instinctive behavior C. a response to crowding D. an escape from predators
B. an instinctive trait
Which of the following diagrams best represents how light travels from a flashlight to a piece of paper that is 40 cm away?
B. The light does not curve or bend. It travels in a straight line.
Name the four types of precipitation.
100 bonus points for each one you can explain how it is formed
Rain is formed when water vapor condenses into a cloud above freezing temperature
Snow is formed when water vapor condenses into a cloud and then freezes below freezing temperature
Sleet is formed when rain falls and temperature of air is below freezing and freezes rain into sleet.
Hail is formed when it is very windy and it snow and the wind pushes the snow around in air below freezing temperature and as it goes round and round it builds up into hail.
What causes season's on Earth A) Earth's rotation and Earth's tilt B) Earth's revolution around the Sun and Earth's tilt C) Sun's rotation and Sun's tilt D) Sun's revolution around Earth and Sun's tilt
B) Earth's revolution around the Sun and Earth's tilt
Which of the following properties best describes a material’s ability to resist scratching?
A. weight B. flexibility
C. length D. hardness
D. hardness