How do scientists gather data during an investigation
Collect and record measurements, observations, graphs
100
Using a toothbrush to clean your teeth is an example of what kind of energy
Mechanical Energy
100
Name three properties scientists use to classify stars
Brightness, size, and temperature
100
A plant that reproduces spores is classified as a...
Nonflowering plant
200
What is the relationship between observing and inferencing
An inference is based on something you observe.
200
When using a balance, which property of matter are we measuring
Mass
200
What are two reasons stars appear brighter than others in the sky
They are larger in size and they are closer to Earth.
200
What is the role of the root in a plant
To hold the plant in place
300
During a scientific investigation, scientists always make observations. What do scientists always use when making observations
Their senses
300
If you look at a straw in a clear glass of water, it looks broken. Why does it look this way
Light Refraction
300
How does a telescope affect our ability to see stars
You can see more stars with a telescope
300
What do flowering plants and nonflowering plants have in common
They can reproduce
400
Joey and Mike were both investigating the effects of the Sun on a black piece of paper. They communicated their results at the end of the investigation. What is the reason they share their results
To compare their results and learn from each other.
400
When someone hits s drum, how does the energy change
It changes from mechanical energy to sound energy
400
How are the sun's light energy and heat energy related
Light energy from the Sun transforms into heat energy
400
Why do plants grow to the center of Earth
They respond to the pull of Earth's gravity
500
What is the reason that scientists conduct investigations
So they can answer questions about the natural world
500
What happens to water when it condenses
Water particles cool down and change into a liquid.
500
Does temperature have any influence on how bright a star appears Explain your answer.
Yes, the hotter a star is, the brighter is gets. The cooler is star, the more dim it is.
500
Describe how plants respond to gravity, heat, and light
Stems grow up and roots grow down to respond to gravity, plants need heat from the Sun to grow, plants grow towards the light to get more energy