Which step MUST BE FOLLOWED before heating a liquid over a flame in science class?
What is the BEST WAY TO IDENTIFY an unknown chemical?
Why should you repeat an experiment 10 times before you write a conclusion?
What is the FIRST step in the scientific method?
The following experiment was set up to test whether a plant grows best in salt or fresh water. What is the MISTAKE?
What is the INDEPENDENT variable in the pictured experiment?
Gathering information using your 5 senses is
When you decide whether or not the data supports your hypothesis you are
Sharing your results with others is the skill of
An educated guess is called
What could be the scientific PROBLEM for the experiment shown in the picture?
The amount of space an object takes up is called
The amount of matter in an object is called
The distance between 2 points is called
The basic SI metric unit for mass is the
The basic SI metric unit for volume is the
The basic SI metric unit for length is the
The instrument used to measure liquid volume is the
The instrument used to measure mass is the
If an object floats in water, then the object's density is
The volume of the box is
What is the length of the black line?
What is the volume in the graduated cylinder?
Which organism is made of ONLY ONE cell?
The basic unit of structure and function in living things is
Where can this cell be found?
Cells release the energy stored in foods during the process of
Which of the following directly provides humans with their main source of energy?
Autotrophs such as plants make their own food during the process of
What do these organisms have in common?
The structure in a plant that provides shape and support is
Through which process does water move across a cell membrane?
Which structure in a plant cell captures sunlight during photosynthesis?
Which is true about the labeled structures in the cell?
What process occurs in all these cells?
What structure in found in plant cells, but not in animal cells?
Name this cell process.
Name this cell process.
What part of the microscope is used to focus on a specimen?
What is the name of part C in the diagram?
What is the function of part E?
Calculate the total magnification using the HIGHER power of a microscope which has a 2x eyepiece, 3x objective, and a 4x objective.
The total of all the chemical reactions in a cell is called
Which life function removes wastes from the cell?
Maintaining stable internal conditions in the cell is called
Which of the following is an autotroph?
An increase in the size of an organism is called
What part of the cell regulates what comes in and goes out?
When an egg and sperm combine, what is formed?
An amoeba divides into 2 equal-sized new organisms. What is this type of asexual reproduction called?
The process in which a sperm and egg combine is called
If a BODY CELL in an organism has 40 chromosomes, how many chromosomes are in each of its SEX CELLS?
If a SEX CELL in an organism has 40 chromosomes, how many chromosomes are in each of its BODY CELLS?
Which type of asexual reproduction is shown in the diagram?
Which type of asexual reproduction is shown in the diagram?
What is TRUE about sexual reproduction?
What is TRUE about asexual reproduction?
Sperm and egg combine INSIDE a female mammal. This is called
A male fish deposits sperm over the eggs of a female fish in the water. This is called
The diagram shows the changes in body structure of a butterfly as it goes through its life cycle. This is best described as
Which part of a plant is the organ of sexual reproduction?
The transfer of pollen from the stamen of one flower to the pistil of another flower is called
The MALE part of the flower is called the
What does pollen contain?
The sprouting of a seed is called
Runners, bulbs, and tubers are a type of
Abnormal cell division causes which health problem?
The numbers in the diagram represent the number of
Which process is responsible for the growth and repair of human tissue?
One function of a plant's seed is to
At which stage is fertilization occurring?
A trait that helps an organism survive and reproduce is called
Which of the following organisms could evolve MOST RAPIDLY?
The number of dark colored moths should increase due to
Which layer contains the YOUNGEST fossils?
One reason that bacteria can evolve so quickly is that they
The diagram shows a long period of time. What is being formed?
Natural selection is best described as
Which dinosaur evolved from Camptosaurus?
The birds' beaks show how the birds
What process does the diagram represent?
What does the symbol for individual 2 in the top row (generation I.) represent?
How many generations are shown in the pedigree chart?
Which of the following is a SON of 5 and 6?
Who gave individual 2 in the bottom row (generation III) their colorblind gene?
A normal vision male is represented as
Which genotype represents a female carrier for colorblindness?
Purebred means that the genes for a trait are
In which gene combination would the RECESSIVE trait appear?
What is the percent chance of a SHORT offspring in the following Punnett square?
Red eyes (R) are dominant over white eyes (r) in fruit flies. A fruit fly with a genotype of Rr would have
Red eyes (R) are dominant over white eyes (r) in fruit flies. Which symbol represents a HYBRID fruit fly?
Arrange these in order from SMALLEST to largest.
Chromosomes are made of the chemical called
How many males in the pedigree chart show the trait?
What eventually happens to a species when the environment changes and the organisms do NOT adapt?
Which process is an example of a PHYSICAL change?
How to make chocolate chip cookies: Mix flour, salt, and sugar in a bowl. Crack 2 eggs and add them to the bowl. Stir in chocolate chips. Bake for 20 minutes in the oven. Which is the CHEMICAL change?
Which model is used by scientists to organize the elements?
Which of these are ELEMENTS?
All matter is made up of particles called
Sand and iron particles can be best separated by
Which lettered diagram best represents a SOLID?
Water vapor changes to liquid water during the process of
As water temperature increases, solubility of the substances
As the temperature is increased from 20˚C to 60˚C, how many more grams of Substance B can be dissolved in 100 mL of water?
Which is a CHEMICAL property of a mineral?
Which graphs shows that "as temperature increases, more grams can be dissolved"?
Which of the following is a physical property of NONMETALS?
When nitrogen and hydrogen combine chemically, the mass of the product is
Liquid water turns into an ice cube during the process of
How many PROTONS does Fluorine have?
How many NEUTRONS does Fluorine have?
How many ELECTRONS are in a neutral atom of Fluorine?
Which of the following is classified as a METAL?
Which of the following is classified as a NON-METAL?
What is TRUE about noble gases?
Which is classified as MATTER?
Which is a CHEMICAL property of water?
What is the density of a substance that has a volume of 20 mL and a mass of 10 g?
How can you SPEED up the rate of dissolving?
As the population of mice in a barn decreases, the population of cats that depend on the mice for food will
Different species of carnivorous animals that share the same habitat in an ecosystem may
One consumer in the fish tank ecosystem is the
How do decomposers obtain their food?
Grasses, flowering plants, and trees are called producers because they make
The main source of energy for a desert community is the
Which statement best describes the relationship between the rabbit and the grass?
Why are the fish able to survive in the pond?
Which material is being cycled between the living and nonliving environments?
All food chains begin with
Name one producer in this food web.
Which organisms obtain energy for growth and development directly from the Sun?
Name an herbivore in this food web.
Which statement would be TRUE if all the snakes disappeared?
Which organisms compete to eat the rabbits?
Which organisms would be affected first if the wheat plants disappeared?
Which of the following is a food chain shown in this food web?
Which organism correctly completes the food web at A?
If two organisms are in the same family, they must
Which of the following lists the levels of classification in order from LARGEST to smallest?
"Homo sapiens," the scientific name for the human, refers to the human's
The closest relative of "Felis domestica" is
Which group contains the greatest variety of living things?
Which is a member of the protist kingdom?
Which two organisms are in the same kingdom?
What causes an object's motion to change?
The diagrams show a person moving a 50-kilogram object up a ramp. Which diagram shows the MOST amount of friction on the object?
The two dogs are pulling on a rope with constant but unequal forces. In which direction will they move?
Which of the following is NOT considered "work" in science?
The roller coaster rolls down the first hill (from a to b to c) and then up the second hill (from c to d). When does the roller coaster have the GREATEST KINETIC ENERGY?
The first diagram shows a spring scale being used to weigh a 100-gram mass. What will the pointer read when the same spring scale weighs a 400-gram mass?
What energy change occurs while a child is riding on a sled down a steep, snow-covered hill?
At which temperature does a phase change begin in the graph?
What type of energy stored in gasoline is transformed into mechanical energy in a motorcycle engine?
Which is an example of conduction?
What energy transformation occurs after a battery-operated flashlight is turned on?
The first box shows a gas at room temperature. Which diagram shows the result of removing heat from the gas until it freezes?
Compared to the particles in an ice cube, the particles in liquid water
In which diagram does the bow and arrow have the GREATEST amount of POTENTIAL energy?
Which process is represented by letter B?
Fossil fuels are considered NONRENEWABLE because they
What energy transformation occurs in a burning match?
A TV changes electrical energy to sound and light energy. In this process, some energy is
As the metal ball is heated, which of the following will happen?
A thermometer works on the principle that, when heated, a substance will
Heat from the sun reaches Earth by
Sound travels fastest through
The loudness of a sound wave depends on its
When a wave bounces off an object it is
The number of waves passing a given point in one second is called
Which wave has the highest frequency?
What is TRUE about a green object?
Which waves are the only waves that the human eye can see?
The highest part of a transverse wave is called the
Sound travels fastest through a
Which process causes the metal spoon to appear split or broken in the glass of water?
As wavelength increases, frequency
A crowd watches the launching of a rocket from a distance of 5 km. When will they hear the sound of the rocket's engines?
A clean glass windshield is considered
As the air is pumped from the vacuum jar, the sound level of the ringing bell will decrease until it can no longer be heard. This happens because air must be present in the jar in order for