How can you extract palladium from palladium chloride
Yes, there are several methods of reducing palladium chloride to elemental chloride.

By converting Pd(II) salt to palladium acetate ($\ce{[Pd(CH3CO2)2]3}$) and decomposing it at 200-300 $\pu{^\circ C}$. (link)

By using reducing agents

carbon monoxide
$$\ce{CO + PdCl2 + H2O → Pd + CO2 + 2HCl}$$
This is a qualitative reaction to determine the presence of carbon monoxide in the
air. A paper moistened with a solution of palladium chloride turns black in the presence of carbon monoxide due to the formation of finely dispersed metallic palladium. The reaction proceeds at r.t. The yield is high (84%).

Hydrogen
$$\ce{PdCl2 + H2 -&gt; Pd + 2HCl}$$
Pd(II) salts can be reduced to finely divided elemental palladium by using
hydrogen. The reaction proceeds at r.t. but the reaction rate can be increased by
increasing the temperature. See this paper for more details.

Using $\ce{SnCl2}$

The reaction proceeds by formation of a complex. Yield is also high (90%). See here for more details.

Other reducing agents ($\ce{TiCl3, Fe, Cu, Zn}$)



Decomposition of palladium chloride. But the reaction is unreliable. The reaction proceeds at high temperature (590-740 $\pu{^\circ C}$). May release fumes of chlorine and hydrogen chloride which might be dangerous. Palladium obtained may be impure because of formation of various types of oxides. (link)

Decomposition of potassium tetra/hexachloropallade

Calcination in air. Dissolve the salt in a suitable solvent (usually water), &quot;paint&quot; the solution on a substrate, allow the solvent to evaporate and then start calcination. Pd(II) would become Pd(0), leaving a thin metal film on the substrate.

Binding of Pd-salt into an organic matrix (e.g., a zeolitic inorganic-organic polymer electrolyte), and then calcinate the product. However, using this approach, calcination should be done under vacuum or under an inert atmosphere (otherwise, oxygen might yield Pd oxide systems). In this case, Pd ends up as metal nanoparticles into a carbonaceous matrix.

Solution phase reduction. Impregnate silica with your metal salt solution, add a reducing agent like formic acid, ethylene glycol, $\ce{NaBH4}$ or hydrazine, heat at $\ce{150 ^\circ C}$ for ethylene glycol and at $\ce{80 ^\circ C}$  for the rest of the reducing agents, you will get Pd decorated $\ce{SiO2}$ particles. Nano particles are prone to oxidation at higher temperatures, so performing the reaction in inert atmosphere like $\ce{N2}$ or Argon will ensure the Pd(0) particles.

by Emeraldine base to form palladium nanoparticles. See here


Details about the points can be found in this researchgate article. But since this is a school project, points 3-7 are out of scope. The best method would be the &quot;reduction through carbon monoxide&quot;.