Scientific Method and Processes
Flowers/Plants
Ecosystems
Atoms & States of Matter
Energy and Circuits
Random :)
100
Why does a scientist wear PPE?
a scientist wears personal protective equipment (PPE) to keep them safe from hazards and danger when conducting experiments
100
Name both parts of the Stamen
Filament and Anther
100
List two examples of biotic factors
List two examples of abiotic factors
Biotic (anything living) - plants, animals, cells, etc
Abiotic (anything nonliving) - air, soil, water, temperature, etc
100
What are the 3 types of subatomic particles and what is their electrical charge?
Protons (positive)
Electrons (negative)
Neutrons (no charge)
100
Conductors are materials that allow heat and electricity to move through them easily. What are most conductors made out of?
metals (gold, silver, copper, nickel, aluminum, etc)
100
What is the difference between a mixture and a solution?
A mixture is something that is combined physically but can be sorted and separated back to the original layout (ex. trail mix)
A solution is a chemically combined substance that all parts mix together and cannot be undone (ex. lemonade)
200
Define the words hypothesis and experiment
A hypothesis is a prediction you make before an experiment
An experiment is when you test your theories or hypothesis to see if they are correct
200
Name all 4 parts of the Pistil
ovary, ovules, stigma, and style
200
Who is the producers in this food web?
Plankton
200
Describe the how the particles of a solid are different from the particles of a gas?
In a solid, the particles stick together and move very slow due to their lack of energy
In a gas, the particles move very quickly and bounce off their container because they have a lot of energy
200
List two examples of conduction, convection, and radiation
Answers will vary
200
Create a food chain with a producer, primary, comsumer, secondary consumer, and a tertiary consumer
*Answers will vary*
Example food chain
grass --> grasshopper --> frog --> snake
300
Define each type of variable (control, independent, dependent)
Control variables stay the same throughout an experiment
Independent variables are what you change in each trial of an experiment
Dependent variables are the data you measure during an experiment
300
Explain the process of pollination in a flower
Pollen grains reach the pistil and connect to ovules and become eventually become seeds; fruit grows around the seeds to protect them
300
List two animals that the Cod eats in the this food web
Scallop, Herring, and Mackerel
300
What is difference between chemical and physical changes?
A physical change is when a substance changes structurally, but remains the same substance
A chemical change is when a substance change into a new substance and the change cannot be undone
300
What 3 items do you need in order for a circuit to function?
1. A load (like a lightbulb or motor)
2. A power source (like a battery)
3. Conductive materials (like copper wire)
300
1. What is the universally accepted density of water?
2. If an object is less dense than water, what happens?
3. If an object is more dense than water, what happens?
1. 1.00 g/ML
2. it floats
3. it sinks
400
Identify the independent, dependent, and control variable from the prompt below
Katiana wanted to figure out what type of liquid worked best for growing beans. She watered them each day. One plant got Coca-cola, one got lemonade, and one got just water. Each plant got 8 hours of light each day. Each plant used the same soil/fertilizer. After one week, she measured how high they had grown.
Control - same type of beans, same time in the light and soil
Independent - different liquids
Dependent - height of the plants
400
Explain the difference between a self pollinating and cross pollinating flower
a self pollinating flower uses its own pollen to reproduce
a cross pollinating flower uses pollen from another flower and relies on a pollinator (bee) to transfer it to other flowers
400
Define the following words...
-species
-population
-community
a species is animals that are genetically alike and can mate and reproduce
a population is all of the same species that live in an area
a community is all of the population that live in an area together
400
Answer the following...
1. Solid --> Liquid = ___________
2. Liquid --> Gas = ____________
3. Gas --> Liquid = ____________
4. Liquid --> Solid = ___________
1. melting
2. evaporation
3. condensation
4. freezing
400
Explain the difference between a parallel and a series circuit
a parallel circuit has multiple pathways for energy to flow
a series circuit has only one path for energy to flow
400
What is the difference between vascular and non-vascular plants?
Vascular plants have tissue and support networks (xylem and phloem) in the stems and leaves to help resources travel within the plant. Nonvascular plants do not, so they are typically smaller and lower to the ground
500
List the following...
-One tools used to heat
-Two tools used to observe
-Three tools used to measure or weigh
Heat: hot plate, bunsen burner
Observe: magnifying glass, microscope, petri dish
Measure/Weigh: thermometer, meter stick, triple beam balance, beaker, graduated cylinder, flask, stopwatch
500
What is the formula for photosynthesis and why does the plant need to do it?
Water + Light+ CO2 --> Glucose + O2
A plant need to photosynthesis in order to produce food (it eventually use cellular respiration to turn that food into energy)
500
In an ecosystem, let's imagine a population of squirrels gets larger and exceeds their carrying capacity. Explain what would happen within the ecosystem to the squirrel population and the foxes who eat the squirrels.
Squirrel population would begin to compete for resources because there are more squirrels than available resources to survive. As a result, squirrel population would decline. As a result, the foxes who eat the squirrels would also suffer and decline because they are losing their main sources of food. Eventually over time, both population would recover.
500
Pictured below is the details for the element Sodium. Based on this, how many protons, neutrons, and electrons does a sodium atom have
11 protons (based on atomic #)
11 electrons (a normal atom has same number of protons and electrons
12 neutrons (the mass # at the bottom should add up to total number of proton and neutrons in the nucleus)
500
Assume that an electrician wants to add extra lightbulbs to an existing circuit with 3 lightbulbs already.
What would happen if it was a series circuit?
What would happen it it was a parallel circuit?
On the series circuit, all the other lights would all get dimmer if additional lights were added without added more power
On the parallel circuit, all the lights would stay lit at the previous brightness levels even with a more lightbulbs added
500
List all 6 terrestrial biomes (land)
List 4 aquatic biomes (water)
Land: Taiga, Tundra, Desert, Savanna, Tropical Rainforest, Deciduous Forest
Water: Freshwater, Saltwater, Coral Reef, Estuary