Index Fossils
Fossils that help with dating are called index fossils.
Index fossils formed from that
• were alive for only a period of geologic time.
• are extinct.
• had hard parts such as shells, bones, and teeth.
• lived across a wide area.

The answer choice is short, relative, geographic, organisms

What is a type of fossil from an organism that lived for a short time that is widely distributed, is easy to recognize, and assists with relative dating?
A.
Intrusion
B.
Index Fossil

Pls help

Which phrase describes how metamorphic rocks form?

form from melting
form at Earth’s surface
form from sediments
form from existing rocks


Pls answer it

1. In what ways does an organism’s mode of reproduction impact the diversity of its offspring? (Asexual vs. Sexual)

If carbon has 6 neutrons how many protons does it have

Which of the following best describes alternating current? ________

A. current that constantly turns on and off

B. current in which charges change direction

C. current that gains and loses electrons

D. current that increases and decreases in temperature

Using the model, write the chemical formula for an ionic compound that has Mg and Cl.

What are some important things in this paragraph ???? BRAINLIST WILL BE AWARDED!


You can explain how the moon changes in a pattern using models. Suppose you were standing in the dark room with a bare light bulb behind you. You hold a ball in front of you, and you can see all of the lit half of the ball, which looks like a circle. Keeping your arm straight in front of you, you rotate 90° to your left, and see the left side of the circle lit while the right side is dark. Half the ball is still lit up, but you can see only part of the lit area. As you continue to rotate, you see a different amount of the ball. In fact, you would see the shape change from a full circle to a crescent shape to a backwards crescent shape and then back to a full circle. You have just modeled how the moon changes over the course of a month, using a light bulb to represent the sun and a ball to represent the moon.

Which statement about plants is the most accurate?
Group of answer choices

Plants undergo both photosynthesis and cellular respiration

Plants undergo neither photosynthesis nor cellular respiration.

Plants undergo photosynthesis but not cellular respiration.

Plants undergo cellular respiration but not photosynthesis.

Use the diagram below to answer the question.

If a person jumps off of the skateboard in the direction indicated by arrow A, the skateboard will move in the direction of arrow B. Which statement below best describes this principle?

Mass can be converted to energy.


Energy is neither created nor destroyed; it only changes form.


Every action force results in an equal and opposite reaction force.


Unless another force is applied, an object in motion will move at a constant speed.

Think of, and describe a situation when your frame of reference (your point of view) affected the way an object's motion appeared to you as you observed it moving.

Be sure to explain what was your frame of reference.

What was the frame of reference for other people in your scenario who may have had a different frame of reference from yours, and what did each person see?

The particulates left from combustion have the same mass as the substance that was burned.

The table below shows properties of four different samples. One of these materials is cork, a type of wood that floats in water. Given the density of water is 1 g/mL, which of the samples is most likely cork?

Which statement accurately describes broadleaf trees?

What is igneous rock that forms beneath Earth’s surface as a result of the cooling of magma?
A.
Intrusion
B.
Index Fossil

If you have a 15% salt water solution, how many grams of salt do you have if you have 50 ml of water.

How many grams

Which is not a way to separate the components of a mixture?


A. filtering

B. distilling

C. stirring

What is the main difference between a generator and an electric motor? _______

A. A generator produces electricity and an electric motor consumes electricity.

B. A generator uses a permanent magnet and an electric motor uses an electromagnet.

C. A generator produces a magnetic field and an electric motor produces an electric field.

D. A generator uses a rotating magnetic field and an electric motor uses a non-moving magnetic field.

Balance this chemical equation. Thank you.

Balance this chemical equation. Thank you.

How does a papyrus plant get energy from the sun? Use your understanding of photosynthesis to answer this question.

Write your answer in one or more complete sentences.

Which body system carries nutrients to the cells of the body?Answer options with 5 optionsA.circulatory systemB.digestive systemC.muscular system. D respiratory systemE.skeletal system

In the food web below, what is one example of an omnivore?
a food web with berry bush, mouse, cricket, squirrel, rabbit, frog, fox, owl, snake
cricket
squirrel
mouse
fox

Which two elements weather rocks by smoothing them?

If energy can be transformed from one form to another then energy is (conversed or destroyed) because

Explain how a sedimentary rock forms. Include all the words in the chart.
Include these words burial,erosion,weathering,cementation,gravity,compaction,water
,deposition, and wind

A dog has greater mass as an adult than she did as a puppy. Has matter been created? Why or why not?

Explain how to produce a longitudinal wave on a spring that has large energy. There are two answers; one involves wavelength and the other frequency.

Using the model, write the chemical formula for an ionic compound that has Mg and Cl.

would you use baking powder to see whether or not it is an acid or a substance? yes/no?

Ill give brainliest if answered fast!

Part 1:
Include important facts found through your research.

Part 2:
Include your visual display.
Include your summary of “The Chemistry of Water” from the National Science Foundation website.
Include your experiment.
Part 3:
Include responses to the reflection questions.