Nature of Science
What tool would you use to separate iron filings from sand?
What causes day and night on Earth?
Earth Rotating on its axis
What is Matter?
Matter is ANYTHING that takes up space and has mass!
Energy is defined as the ability to do what two things?
cause motion or create change
What do plants use to make food?
Sunlight, water, carbon dioxide (photosynthesis)
Why should scientists record procedures and data?
So others can repeat the experiment and compare results
Name and Define the 3 types of Rocks
Igneous: Igneous rocks are formed when molten lava cools into a solid
Sedimentary: Sedimentary rocks are formed when pieces of other larger rocks and fossilized organisms are weathered and broken down,
Metamorphic: Metamorphic rocks are formed from heat and pressure deep within the Earth.
The smallest part of Matter is...
an Atom
A mirror reflects light, a black shirt absorbs light, and a straw in water looks bent.
What are the three ways light can behave when it hits an object
reflection, absorption, and refraction
Compare producers vs consumers.
Producers make their own food; consumers eat others
Observation or opinion: “Earthworms move away from light.”
Observation
Compare the inner vs Outer Planets
Inner; are called terrestrial or rocky planets
Outer; are called Gas Giants
Name a substance that will not dissolve in water
sand (sinks to the bottom)
Oil (floats on top)
Name and give an example of a form of energy
There are several forms of energy: light, heat (thermal), mechanical (determined by an object's motion or position), sound, electrical, and chemical.
A bee lands on a flower and then flies to another flower of the same type.
Explain how this action helps the plant reproduce and what happens next in the process.
The bee transfers pollen from the stamen to the stigma (pollination). Then fertilization occurs when the sperm and egg join in the ovary, forming seeds.
Steps of the scientific process
Define a problem
Make predictions (hypothesis)
Conduct an experiement
Collect and organizing data; interpreting data in charts, tables, and graphics
Analyze information(from the data collected).
Prepare and defend conclusions.
Name the precipitation
a form of precipitation consisting of ice pellets, often mixed with rain or snow.
Sleet
What would make a good conductor;
Anything metal
A guitar string is plucked and produces a high-pitched sound.
Explain what must be happening to the string and how that affects the sound.
the string is vibrating quickly. Faster vibrations produce higher pitch sounds.
A person runs a race and begins breathing faster and their heart rate increases.
Explain how at least two body systems are working together to support this activity.
The respiratory system brings in more oxygen, and the circulatory system (heart and blood) transports that oxygen to muscles. The muscles use the oxygen for energy to keep moving.
Experiments VS. Investigations
Experiments have controls and variables defined. They can be replicated (if steps are followed correctly), getting the same results every time (verified evidence).
Investigations- do NOT have controls. They may be based on a series of observations to make an inference.
What is the order of the planets
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
My Very Educated Mother / Just Served Us Nachos
A student has a jar of sand, salt, and iron filings together in a container. Is this a mixture or a solution
How would you separate all three materials and explain which physical property is used at each step.
A small car and a large truck are pushed with the same force. The car moves faster and farther. Explain why using mass and force.
The car has less mass, so the same force causes a greater change in motion. The truck has more mass, so it requires more force to move the same way.
A plant must grow, make food, and reproduce to survive.
Explain how roots, stems, leaves, and flowers work together to accomplish these functions.
Roots absorb water and nutrients and anchor the plant.
Stems transport water and nutrients and support the plant.
Leaves perform photosynthesis to make food.
Flowers allow reproduction through pollination and fertilization to produce seeds.
All structures work together as a system to keep the plant alive and reproducing.