A group of students place an iron bolt on a table and hold a magnet above the bolt. The iron bolt will move in which direction?
The bolt will move up toward the magnet.
Lightning is an example of nature demonstrating:
Dynamic electricity
Magnetic force
Static electricity
The powers of Thor
Static electricity
Many birds sing songs. These songs help bird recognize members of their own species. In order for songs to help birds find members of their own species, what characteristic must the songs have?
Each species must have a special song.
The songs must be very loud.
Birds must change songs often.
Other birds must not hear the song.
Each species must have a special song.
Fossils give us evidence about which of the following?
Plants and animals that lived long ago
How weathering and erosion break down rocks
The other planets in our solar system
The transfer of energy from one form to another
Plants and animals that lived long ago
Day and night on the Earth are caused by–
the orbit of the Moon around the Earth.
the rotation of the Sun on it axis.
the orbit of the Earth around the Sun.
the rotation of the Earth on its axis.
the rotation of the Earth on its axis.
Magnets have a north and south pole. Which statement is true?
Two north poles attract.
North and south poles attract.
Two south poles attract.
North and south poles repel.
North and south poles attract.
Protons are particles that have what kind of charge?
Positive charge
Neutral charge
Negative charge
Battery charge
Positive charge
What is an inherited trait?
- Behaviors that an organism learned from influence from the environment.
- Traits that an organism inherits from its parents.
- A new organism produced by one or more parents
- The passing of traits from parents to offspring.
Traits that an organism inherits from its parents.
Finding the fossils of trees in an area that is currently a desert without much life might tell us that the area, millions of years ago...
was heavily eroded by strong winds.
received enough rain to support a forest.
suffered very powerful earthquakes.
was destroyed by the impact of meteorites.
received enough rain to support a forest.
How long does it take the Moon to revolve around Earth?
7 days
14 days
21 days
28 days
28 days
Toy cars have magnets attatched, as shown. One car is placed behind another. In which arrangement would the front car be pushed forward by magnetic force?
The illustration shows a complete electric circuit with a lightbulb. Which forms of energy will the bulbs produce?
light and motion
sound and heat
heat and light
electrical and heat
heat and light
Squirrels run away when there is a loud noise in their environment. How does this behavior benefit squirrels?
It helps them avoid danger
Finding which kind of fossil in a location would lead to the conclusion that long ago, the area was part of a swamp?
Alligator toe bone
The side of Earth facing the sun is in light, what is happening on the opposite side of Earth?
The metals that magnet is attracted to are called...
ferromagnetic metals
Electrical wires are covered with rubber to keep us safe. What does the rubber casing do?
It acts as an insulator.
Sometimes a raccoon will stand on its back legs to make it look bigger. How might this help the raccoon?
It could frighten an animal that attacks it.
When looking at different layers of sedimentary rock, where would someone find the oldest fossils?
The oldest fossils are found in the lowest layers of sedimentary rock.
A student modeled the cause of day and night on Earth using a flashlight to represent the sun and a baseball to represent Earth. How should the student model one day/night cycle on Earth?
Spin the baseball through one rotation
What are the 4 ferromagnetic metals we learned about? HINT: N.I.C.S.
Nickel
Iron
Cobalt
Steel
2. Imagine an atom is made up of 5 protons, 5 electrons, and 3 neutrons. What is the charge of this atom?
This is a neutrally charged atom.
If an animal wanted to escape from a predator but was not fast enough to get away, what survival behavior could keep it safe?
Playing dead
The tables here give information on animal and plant fossils. Based on the information in the tables, which two fossils would most likely be found together in the same rock?
Alligator toe bone and fern
Which moon phase is shown in the image?
First quarter