A scientist's opinion is a valid source of information to use in a scientific investigation. True or False?
What is False. A scientist's opinion is not reliable unless it is supported by facts.
100
Physical properties are measurable and observable characteristics of matter. Name at least 3 measurable properties of matter, and the tools used to measure them.
What is Mass, volume, and temperature. Mass is measured with a balance scale. Volume is measured with graduated cylinders. Temperature is measured with a thermometer.
100
What is energy? Name at least six types of energy. You cannot use solar, potential, or kinetic.
What is the ability to do work (cause motion) or create a change. Six types of energy are light, heat/thermal, sound, chemical, electrical, and mechanical.
100
Name 4 contact forces.
What is Pushes/Pulls, Friction, Air Resistance/Air Friction, and Fluid Friction.
100
Name 3 types of galaxies. Include their shapes, and which one is the brightest.
What is the spiral galaxy, elliptical galaxy, and irregular galaxy. The spiral is shaped like a pinwheel. The elliptical is shaped like an oval. The irregular can have any shape. The brightest galaxy is the spiral because it has the youngest/newest stars.
200
List the steps of the scientific method.
What is 1) Question/State the Problem -- Research the Problem -- Hypothesis -- Experiment (Materials & Procedures) -- Record or collect the data -- Analyze Results -- Draw a conclusion (accept or reject hypothesis)
200
What is the difference between a solute and a solvent in a solution?
What is the solute is the solid part (like sugar) while solvent is the liquid that the solid dissolves in (like water). A solution cannot be separated.
200
What does hydroelectric energy, wind energy, geothermal energy, and solar energy, all have in common? (hint: think about the definition of energy)
What is all of those forms of energy involve causing motion (hydroelectric, wind, and geothermal) or creating a change (solar panels converting solar energy into electricity).
200
Name 3 non-contact forces.
What is gravity, electric forces, and magnetic forces.
200
What are stars? How do we measure distance to stars? What is the name of the star in our solar system?
What is hot balls of gases that emit light energy. We measure a stars distance in light years. The name of our star is the Sun.
300
You want to investigate something, but it is too vast, too minute, or too dangerous to explore. What is at least one thing you can do to investigate this problem?
What is Make a model (a representation of an object or event in the real world) or Simulate (an imitation of the object or event, usually in a computer)
300
Name 4 physical changes, and state how temperature affects each change (for example, will the temperature need to be increased or decreased?).
What is Melting (increase temperature to change solid to liquid), Freezing (decrease temperature to change liquid to solid), Evaporation (increase temperature to change liquid to gas), and Condensation (decrease temperature to change gas to liquid)
300
What is the difference between an open circuit and a closed circuit? (Do not just say the words "on" or "off", give more details).
What is An open circuit has a gap; therefore, no electricity can flow. On the other hand, a closed circuit has a complete loop allowing electricity to flow.
300
What happens when you have two bar magnets, and you have both of their south poles facing each other?
What is The ends of the magnets will repel from each other because they are like poles. Unlike poles (north and south) will attract to each other.
300
Name all of the planets in order. In your list, include the asteroid belt and a dwarf planet.
What is Mercury, Venus, Earth, Mars, the asteroid belt, Jupiter, Saturn, Uranus, Neptune, and our dwarf planet is Pluto.
400
What is the difference between an independent variable, controlled variable, and dependent variable?
What is Independent variable is the variable changed on purpose. Controlled variable is what is kept the same during the experiment. Dependent variable is the variable being measured in your experiment.
400
Name at least 4 chemical changes, and how does temperature affect each of these changes (does it need to be increased or decreased?).
What is burning, rusting, rotting, baking, cooking, or digestion. All of which needs the temperature to be increased.
400
What energy transformation is occurring when someone is using a sewing machine?
What is electrical energy is being transformed into mechanical energy?
400
There are 2 different tug-of-war games being played. In game 1, the flag is moving and one of teams end up winning. In game 2, both teams are pulling, but the flag does not move. Why is the flag not moving in game 2?
What is the rope in game 2 has a balanced amount of forces being applied to it; therefore, no movement will take place. On the other hand, one force is greater than the other in game 1, allowing the object to have movement occur.
400
How does Earth's rotation and revolution affect its time of day?
Bonus: How do we get our seasons?
What is the rotation is Earth spinning on its axis. It takes 24 hours to complete one rotation. The revolution is Earth's movement around the Sun, and it takes 365 1/4 days to complete one revolution.
Bonus: Our seasons occur due to Earth's tilt on its axis. The side closer to the Sun is in the summer or spring season while the side tilted away is in winter or fall.
500
When you carry out a scientific investigation once, it does not have to be replicated, especially by other scientists because your conclusion is valid. True or False?
What is False. Your investigation must be repeated and yield the same results each time in order for it to be valid.
500
Name the 4 states of matter.
What is Solid, liquid, gas, and plasma.
500
What does plastic, glass, rubber, and wood all have in common?
What is All of these objects are insulators which means electricity can not flow through them. Conductors like silver, gold, copper, and aluminum all allow electricity to flow through them.
500
One person is pushing a bookshelf, but it does not move. Two people push the bookshelf, and the object accelerates forward. Why is that?
What is the combined forces of the two people was greater than the mass of the bookshelf, causing it to accelerate forward (change its speed).
500
Draw a picture of the full moon. Draw a picture next to that moon to show the phase that comes next.
What is after the full moon, the amount of sunlight reflected beings to decrease (waning), and next phase is called the wanning gibbous.