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WorksheetsWCAS
Total questions: 25
Worksheet time: 25mins
Use the scenario to answer the next two questions Making solutions Solutions are mixtures that are very common in our daily lives. A solution is composed of a solute and a solvent. A student conducted an investigation using 50 milliliter of distilled water and 5 grams of table salt. The water for each test was brought to a certain temperature before the salt was added. The data from the investigation are shown in the graph. Which conclusion best describes the data in the graph?
Increasing the amount of solvent increases the temperature of a solution
Increasing the temperature of the solute increases the amount of the solution
the amount of solute in a solution determines the time needed for the solute to dissolve in the solvent
A decrease in the temperature of a solvent increases the time needed for a solute to dissolve in a solvent
Which is the correct order of the food chain of the channel catfish?
A,B,C,D
B,C,D,A
C,D,A,B
D,B,A,C
The model shows a process that occurs in a tomato plant
A process Occurring in a Tomato Plant
Which labels correctly complete the model to help describe this process?
water sunlight stored energy
sunlight stored energy water
sunlight water stored energy
stored energy water e.sunlight
The diagram below represents the saltwater solution made by the student. When salt (NaCl) molecules are added to water (H2O), they break into one sodium (Na) particle and one chlorine (Cl) particle.
Chose the name of the solvent and solute
Solute = H2O Solvent=NaCI
Solvent = H2O Solute= NaCl
List the steps of the scientific method
Conduct experiment
Form a hypothesis
Draw conclusions
Communicate results
Ask a question
Analyze results
Which letter represents amplitude? (a)
A
B
C
D
E
From November to February, the constellation Orion is clearly visible in the night sky from Mississippi. Orion appears to rise from the east and set in the west. The stars do not actually move through the sky. They appear to change positions due to the Earth's Movement.
What factor is responsible for the changes in Orion's position when viewed during the winter month?
the rotation of the Sun
the rotation of Earth on its axis
the revolution of the Sun around the Earth
the revolution of the moon around the Sun
A student is identifying properties of chemical particles by using the chart below. Complete the chart by selecting boxes to identify each property as a description of an atom, a molecule, or both
Properties of Particles
Which are particles held together by bonding?
atom
molecule
A student is identifying properties of chemical particles by using the chart below. Complete the chart by selecting boxes to identify each property as a description of an atom, a molecule, or both
Properties of Particles
Which is the smallest particle of an element with properties of that element?
atom
molecule
WCAS: What is the chemical formula for water?
H2O
CO2
O2
CH4
WCAS: Which of the following is a renewable energy source?
Coal
Natural Gas
Solar Energy
Nuclear Energy
WCAS: What is the primary gas found in Earth's atmosphere?
Oxygen
Nitrogen
Carbon Dioxide
Hydrogen
WCAS: Which organelle is known as the powerhouse of the cell?
Nucleus
Ribosome
Mitochondria
Chloroplast
WCAS: What is the acceleration due to gravity on Earth?
9.8m/s2
8.9m/s2
10.5m/s2
7.8m/s2
WCAS: Which element has the atomic number 6?
Oxygen
Carbon
Nitrogen
Helium
WCAS: What is the process by which plants make their food?
Respiration
Photosynthesis
Digestion
Transpiration
WCAS: Which of the following is a chemical change?
Melting of ice
Boiling of water
Rusting of iron
Breaking of glass
WCAS: What is the pH level of pure water?
7
5
9
3
WCAS: Which planet is known as the Red Planet?
Earth
Mars
Jupiter
Venus
WCAS: What is the main component of the sun?
Oxygen
Carbon
Hydrogen
Helium
WCAS: Which law explains the relationship between the pressure and volume of a gas?
Boyle's Law
Charles's Law
Avogadro's Law
Newton's Law
WCAS: What is the boiling point of water at sea level?
100∘C
90∘C
80∘C
110∘C
WCAS: Which of the following is an example of a vector quantity?
Speed
Distance
Mass
Velocity
WCAS: What is the chemical symbol for gold?
Au
Ag
Pb
Fe
WCAS: Which part of the plant is responsible for photosynthesis?
Root
Stem
Leaf
Flower
