Volcanoes
What two substances do we mix to simulate a volcanic eruption?
Baking soda and vinegar
What green pigment do leaves have in the summer?
Chlorophyll
What tool did we use to show attraction or repulsion in static electricity?
Pith balls
What is density?
How much mass is in a given volume
What should you always wear to protect your eyes during an experiment?
Safety goggles
What is magma called once it exits a volcano?
Lava
Why do leaves stop being green in the fall?
There’s less sunlight
What happens when you rub a balloon on your hair?
It builds up static electricity and your hair sticks up or is attracted to the balloon
What does it mean if something floats in water?
It’s less dense than water
What should you do if you spill something during an experiment?
Tell the teacher immediately
What are the three main types of volcanoes?
Shield, cinder cone, and composite
What colors can show up in leaves when the green goes away?
Red, orange, yellow, or brown
What are the two types of charges?
Positive and negative
What’s the formula used to calculate density?
Density = Mass ÷ Volume
Why is it important to listen to directions before starting a lab?
To stay safe and avoid accidents or messing up the experiment
Which type of volcano has slow, runny lava that spreads out wide?
Shield volcano
What role does sunlight play in leaf color change?
Sunlight keeps chlorophyll active
Why do the same charges repel?
Same charges push away due to repulsion
Why do some heavy objects float while light ones sink?
Because density, not weight, determines floating—an object can be heavy but still have low density
What are three rules we follow to stay safe in science class?
Wear goggles, don’t eat in the lab, follow directions, clean up properly (any 3)
Which type of volcano has loud, explosive eruptions with lots of ash?
Composite Volcano
What did we use to extract pigments from the leaves in our experiment?
Rubbing Alcohol
In our experiments, which fabric built up the strongest static charge? Why?
Animal mimic fur
How did the PHET simulation help us understand density better?
It showed how size, shape, and mass affect whether something floats or sinks visually and with measurements
What might happen if we don’t follow safety rules during chemical experiments?
Someone could get hurt, a dangerous reaction could happen, or the lab could be damaged